
there are so many but the only ones i can remember the top off my head are:
Shutline
Mo Dao Zu Shi
Immediate Disadvantage
https://www.mangago.zone/read-manga/coming_1/
as for why, i think i just have a thing for dark haired bottoms

Rainbow city, while I love Major Kwak Suhwan and in the novel he was described to be hella handsome, I love pretty men more and Major Kwak looks like a clown compared to Dr.seok even though he is still very attractive
The origin of species, I love President ceo but be so fr, Lee youngjin IS AN ANGEL
Memories of your breath, do I even need to say anything? JUST LOOK AT HIM
Pearl boy: ignite the dawn, subtract points to seunghyun for having his hair slicked back, makes him look weird compared to yuta who had my jaw drop open at the sight of him

Melting Point's Eunsan but I think I'm in the minority here. Even though both MC and ML are attractive (ML have a lot of fans), I personally find the MC more attractive than ML. It's because of how he presents himself, his attitude, and his mannerisms. My eyes would just look for him in every panel. The way he smokes is attractive to my eyes and I eat that shit up every time
(i am definitely not ryu ian)

lowkey... 99% of them. its very rare that i find a bl where i think the seme is more attractive most semes look like the incredible chin. anyways off the top of my head
https://www.mangago.zone/read-manga/yoru_to_asa_no_uta_ec/
https://www.mangago.zone/read-manga/sangyang_the_wanderer/
https://www.mangago.zone/read-manga/red_string_quests/
https://www.mangago.zone/read-manga/susumu_x_minoru/
https://www.mangago.zone/read-manga/moratte_kudasai/
https://www.mangago.zone/read-manga/stigmata_1/
https://www.mangago.zone/read-manga/dirty_high/
https://www.mangago.zone/read-manga/gomi_yashiki_no_kamakura_san/
https://www.mangago.zone/read-manga/family_now_and_forever/
https://www.mangago.zone/read-manga/no_bad_dog/

yujin from flashlight that man is Scrumptious ive never wished i had a dick so bad bro aaron is so lucky </3
karlyle from define the relationship - he's just so cute i like the difference in how he's normally pretty stoic vs how he is with ash
euihyun from lowtide in twilight - he's just sooo ... you know?
seyoung from netkama punch - he's such a loser i love him
in your opinion, which bl’s had you thinking the uke was more attractive than the seme? if so, from which bl’s cause im so curious lowkey