Suki ni Nattara Dame desu ka?
A super adorable student x teacher BL.
Cherry Blossoms After Winter
Shy, kind pushover Haebom x stoic step-brother Taesung. Haebom gets adopted by Taesung's mom after his parents died. Haebom misunderstood Taesung and thought he hated him for getting adopted. Taesung gets closer to Haebom when he notices that he's getting bullied. Romance ensues. I highly recommend this BL. It's really like a typical shoujo manga, but instead of 1 guy and 1 girl it's 2 guys. Very adorable. I also like how it's realistic in regards to coming out to people.
ROUGE (KATSURA Komachi)
Beautiful deliquent 'Ai' x delinquent transfer student 'Nagato'. Nagato challenges Ai and gets his ass kicked by him. He then falls in love with him and tries to court Ai, slowly learning more about his dark past. Nagato actually stands up for Ai when people casually talk about his trauma. A seme that doesn't think lightly of rape is rare in BL, so this is much appreciated. I also like how Ai is strong. I highly recommend this BL.
Here U Are
Popular student Yuyang x stoic new student Lihuan. A university romance between the popular and charismatic Yuyang and the stoic and misunderstood Lihuan. Lihuan has to deal with his grief after his mom passing away and him being misunderstood because of his stoic expression, while Yuyang struggles with his identity as a gay man and his disapproving family. The characters, especially Lihuan, are really easy to get attached to. Lihuan is adorable in a very unique way, and Yuyang is great because of his kindness and strength. Storywise, it's nothing super crazy or dramatic, but it works nonetheless. Simply put, it's a great university romance BL.
Tadatada Suki to Iu Dake de
Misunderstood shy delinquent 'Totoki' x kind, popular student 'Yoshizawa' It's a pity that Yoshizawa is so shallow. The reader doesn't know much about him at all, so it's hard to form a connection with him. Totoki, on the other hand, is likeable because he's multi-layered: a tough delinquent on the outside, a shy softie on the inside. I'd have given this manga a higher rating if Yoshizawa was more fleshed out.
The Two Lions
Infamous ex-delinquent 'Leo' x kind student 'Junpei'. Leo used to be a feared delinquent but just wants to start over again and live a normal life. Junpei offers to be friends with Leo, and Junpei slowly falls in love with Leo. I like these characters a lot, and the MC being the (probable) seme is really interesting (normally the uke is the MC). Junpei is written very realistically, and I like how Leo doesn't immediately fall for Junpei after he confesses his feelings. This is a wholesome and addictive BL that you'll probably read again.
Hanakoi Tsurane