Sib & Gene - Lovely Writer (Thailand)
Gun & Bar - The En of Love: Tossera (Thailand)
Sun & Sky - Golden Blood (Thailand)
Khun & Kaow - Brothers the series, side couple (Thailand)
Damian & Jerry - Papa & Daddy (Taiwan)
Yu Zhen & Shi Lei - Be Loved in House: I Do (Taiwan)
Ootani & Tachibana - Ai no Kotodama (Japan)
Ace & Sky - My Day the series (Pinoy)
Pat & Pran - Bad Buddy (Thai)
Sean & White - Not Me (Thai)
* For me “sex positivity” means the relationship starts (if depicted starting) with communication and consent. Also the actors need to be good at portraying physical chemistry which means that both characters, seme/uke or not, express an interest in sex with each other. There's no outright reluctance, cringing, blushing maiden, or dubious consent.
I have questions, but they probably still qualify
Mark & Kit - Gen Y the series (Thailand)
Tan & Bun - Manner of Death (Thailand)
Yi Jie & Sheng Zhe - History 2: Right or Wrong (Taiwan)
Muren & Licheng - History 4: Close to You (Taiwan), remarkable for actually talking about sex, positions, lube, condoms, and seeking advice from other gays
Min Soo & Seok Yi - Just Friends? (Korea)
Wild Dog & Flying Dagger - Long Time No See (Korea)
Cairo & Gavreel - Gameboys (Pinoy)
There are some couples that we can predict got there, (Cherry Magic, Seven Days, Most Peaceful Place) but the narrative didn’t ever really show it.
thank you for the inspiration @iblanc who also said that James & Ait from Call it What You Want (Thailand) qualify, but I haven’t watched that one all the way through.
Healthy depictions of uke in Thai BL
Healthy depictions of seme in Thai BL