Pincolino

Win lost a lot of weight for the role to appear smaller and cuter, but in fact he is much bigger than Bright. In the School Ranger episode you could see that Win was the tallest of all of them. I remember that Non in DBK seemed very tall, but his twin brother that acts as a friend of Tine in 2gether is smaller than Win too. I did some Google research. Turns out Win is even taller than Max & Tul.
I didn't read the novel, but in the series Sarawat comes across as rather vulnerable, soft, emotional and caring. He fits the "bottom" role much better. But who cares? I'm not a fan of those roles to begin with.

Why r u? is a good recommendation. I wasn't thinking about it because it's on so many levels the absolute opposite of 2gether. It's less funny, much slower, not very dynamic, but more sensual. Fighter and Tutor are most likely one of the best examples of "equals" in BL.

HIStory 2: Boundary Crossing is the most similar, I think. Cute,romanctic, light hearted, well produced with nice music and very natural acting with no bottom/top cliches.

He makes a better woman than me. Now I go cry in a corner LOL

There are much more for sure. SOTUS for example ... (if you're looking for power balance)

There is no other drama like this, that's why it's such a big success. I also adore Forth&Beam btw.
The only other couples/series I could recommend is Pete&Kao from Kiss Me Again The Series. Their story wasn't very original, but they were both equals and the humor is similar, the director is the same as in 2gether.
Max&Tul (Bad Romance/Together With Me)
The couple in HIStory2: Boundary Crossing
HIStory3: Trapped
Don't know about TharnType (I dropped it), but maybe it's also to your liking.

I really cannot think about any other couple at the moment.
Btw: people here are veeeery critical (me included). It can get heated sometimes LOL.

Found it! https://www.youtube.com/watch?v=0PZC71vSJ44
Skip forward to around 41:12 then you can see the difference between him and the other guys. He appears at around 41:45

You will be stunned ... believe me ... I'm searching for it ... just a sec ...

I'm a big fan of Max&Tul and I would pay good money to see those two making out for an hour straight LOL. But I dropped TharnType and Why r u? even though the actors have good chemistry and good love/kissing scenes. For me it's all about the story and about how much the characters appeal to me. And if I can't get into both, the love scenes are just pointless. But some people need that stuff LOL Regarding 2gether I enjoy watching those two and like you I don't care about love scenes. Seeing them just interact with each other is enough. I also want to see more of those two actors. Hopefully, their success will lead to more future project. There is something special about them.

Well, he is half American as far as I know. And I assume he is half white. For me it's pretty obvious, but maybe I am wrong? Who knows. Btw: I forgot the hair. They cut it short in his neck and you can see it's not laying down properly because it's not thick enough LOL Indians (and Asians in general) have much thicker hair. I never really doubted him looking Asian, but since I saw him as a woman I'm confused. He looked like on of those girls from 90s American TV series LOL.

"Win looks "whiter" than Bright."
No, he doesn't. The lips, shape of eyes, nose, the form of the skull, the rather hollow cheeks - he looks very "white". In a show where he was one of the hosts, he dressed up as a woman and was 100% looking like a western girl while the other guys looked like typical Asian girls. They could have never pulled off the western girl look like Bright while vice versa I guess he couldn't pull off the Asian girl look.

I'm a sucker for good kissing and love scenes. But if you have that kind of tension/chemistry and such good and intense acting, it's not needed. I wouldn't be mad if we won't get any more kisses. The way the actors look at each other makes my heart beat faster.

They kissed: https://www.youtube.com/watch?v=GUKY5VpnTzo

Thailand and progressive? With the ladyboys and sex tourism? The country has many problems. Favoring a biracial guy and not showing enough kissing scenes in a BL is just a minor issue. That said, Bright was no newbie before 2gether. He is extremely beautiful with an unusual appearance. But lately I see comments everywhere that people are falling head over heels for Win. Bright seems to be more interested in making it big in the industry. Win is rather going with the flow at the moment. Also, Bright had much more „gay scenes“ in those 5 episodes than Mario Maurer in the movie which despite the gay theme was much more than just a BL movie.

The power of BrightWin! Can't believe GMMTV provided subtitles for School Rangers ...

I think your view "Only gay people should act/produce/direct in gay movies/series" is very problematic. That also means that no gay person should ever act/direct/produce a hetero movie. I know some famous gay/lesbian actors who never would have made it big with those restrictions. I also wonder why you enjoy TharnType so much, when it's obviously based on some smutty fan fiction written by a heterosexual woman. That said, you don't have to like 2gether. I don't want to convince you to like it (if it came across that way).

I'm very critical too, but about the story, the acting, the chemistry on screen. Not about their sexuality and their right to act in a BL series. You don't ship straight actors? You shouldn't ship any actor. There is a difference between fiction and reality. I don't care what they do in their private life (nobody should) as long as they are doing a good job on screen.

It's a shame that they don't appeal to you as a couple, but to each their own. Talking about being straight/gay. Both are straight and are open about that. I think Bright is very believable in the series as a gay man. He is stylish, elegant, a bit feminine (I love how he crosses his legs). In an interview he talked about playing a gay man and how he felt. That was by far the deepest interview I have ever seen from a BL actor. He really took this role serious.
Also, about their kiss being awkward. It was supposed to be like this in ep 5. Don't know how they will do in the future, but they aren't awkward about kissing in general.
Here the BTS of the kiss:
https://www.youtube.com/watch?v=GUKY5VpnTzo

Bright 183 cm, Win 185 cm

Here with eng sub:
https://www.youtube.com/watch?v=GUKY5VpnTzo
Those two are hilarious. And then all the drama about the kiss ... I wonder why some people have to be so miserable.