light fluffy romantic dramas:
Accidently in Love - school fluffy romance drama
Attention Love - Taiwanese drama but it fits your criteria, its a cute school romance
Chasing Ball - school sports romance drama, very cute and light
I've fallen for you - a historical drama but it is so cute and funny and not that long, the story and characters are written much better than loads of similar dramas in my opinion
Love Better than Immortality - historical romance drama with Zhao Lusi as lead, gets sadder and heavier towards the end, you may cry lol
Legend of Yunxi - historical, light romance but gets sadder towards the end
The Sleepless Princess - light-hearted comedy romance historical drama
Well Intended Love 1 and 2 - this drama is very similar to the dramas you have watched, its full of romance and comedy
more mature romance dramas:
Love is Sweet - very sweet and more mature than most dramas with similar genres
Love Journey/ A Journey to Meet Love - don't know if you enjoy crime mystery but this one has a good amount of romance and lots of sceneries and culture
Go Ahead - cute mature romance family drama, the leads are very fun to watch
Go Go Squid - light and fun drama around esports, lots of romance
Lucky's first love - romantic, mature drama around a company
My True Friend - mature romantic drama around real estate
Only Side by Side with You - mature romance between two company owners
Mr. Fighting - mature, slice of life, slow burn romance
Joy of Life - really good, mature, romantic, full of action/comedy, witty humour and smart plots and characters
the dramas i genuinely liked and really recommend are Love is Sweet, Go Ahead, Lucky's First Love, Joy of Life and I've Fallen For You.
The actresses I recommend are Ma Sichun, Tan Songyun, Bai Lu, Yang Zi. They are also leads in many of the dramas i mentioned above.
(ps: according to your list, you seem to only watch romance dramas so i only recommended dramas with a romantic focus in them, don't know if you like other genres like action, mystery, crime. I have loads of great recommendations for romance dramas with those genres as a focus too. let me know if you want some.)