My fav couple is Shen zechuan and Xiao chiye from qjj and shinobu and hikaru from "ask and you will receive" My honorable mention is probably : chu wanning and moran.
Mio and Shun from stranger by the shore, Yu fan and Chen jingshen from wfmas, Inoue and Kaburagi from Ameiro, Mafuyu and Ue from given, and lastly Shiguang from lc (not canon but i love them)
Favorite yaoi/BL couples?
For me, it’s either Colton and Jinwoo from “Do you Still Like Me?” Or Yajima and Torikai from “Contradict”
The other honorable mentions are the couples from “Semantic Error” and “Secondo Piatto”