So far, I've seen 5 of your 8 choices. Of them, "Love for Love's Sake" was definitely the best, and I also really liked "Jazz for Two", "Happy Ending" (not to be confused with 2022's "Happy Ending Romance"), and the Korean "Why R U" (I won't even call it a "remake" because it's so different from the Thai original). Unfortunately, though, I have to disagree with you on "Love Is Like a Cat", which is probably the worst KBL series I've seen to date. I'm a dog lover with a Pavlovian reflex to automatically like anything dog-themed, so this is quite an achievement.
For me the best were definitely Jazz for two *specially the 2nd couple*they need to make a spin off series with them❤ and love for love sake also a good one..blue boys was quite good with good kissing want more of it though