Can you guys recommend me to love triangle drama any country thai, Korean, Chinese????  The male lead is obsessive and jealous. 

with obsessed and jealousy male lead, maybe you can try to watch these:

Padiwaradda 

Karn La Krang Neung…Nai Hua Jai 

You're My Destiny

Neung Nai Suang


you can refer to this thread for love triangle theme

https://mydramalist.com/discussions/recommendation-forum/43305-love-triangle 


Thai love triangle dramas with two women fight for one man any suggestion's