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.
Tonari no Metaller-san
The uke is a metal fan that uses metal music and black clothing as a way to prevent people from approaching him and to shut out the outside world. The seme is his neighbor and the uke cooks for him. They grow closer and the uke slowly starts to overcome his social anxiety. Very cute and moving. The metal is a bonus.
Black or White