For renhyuck au / socmed anon :
Accounts with Completed aus - @drmspaces , @iehyuck , @00__jun , @haechzones

Accounts with ongoing au : @7niigo

Dream au archive (has been inactive since 2023 so nothing new :( ) - @dreamauarchive

Misc - @bread_aus has a cute dating show one, it’s not specifically renhyuck but I like it (it hasn’t been updated in 6≈ months so if you don’t like incomplete/discontinued aus be aware of that)
@winkbattle has a mini au
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I hope this is enough and I hope it is easy ish to read :/ I’m not all knowing so there are probs thousands!! more out there but these are the ones I know :) my fav account is @00__jun <3