Any similar site like My Drama List but for asian variety shows / survival shows?

Not sure about dedicated site for tracking variety shows, but you supposedly can add those shows here in MDL. It is just that not many shows are in the database right now because less people submitting it. 

As long as a show is produced (or co-produced) by any of the 8 countries that MDL allows, it can be added to the database. Here is the list of eligible contents: https://kisskh.at/help/eligible-content

You can add any show yourself if nobody else has ever done so, provided that you follow the guidelines here: https://kisskh.at/discussions/support/17285-guidelines-editing-and-submitting-new-dramas-movies-and-actors?postid=17285#p17285

**When you submit a new show, please remember to provide the URL of the information source for approval. Usually they want the link from official TV channel website or trustworthy database/info website.

Thanks. if i need i will try to submit. i just found out weekly idol is on here and also on IMDB