Historical / Isekai / reincarnate BL I:
https://www.mangago.me/home/mangalist/835803/
Historical / Isekai / reincarnate BL III:
https://www.mangago.me/home/mangalist/2728331/
It isnt really "shonen" . But it just got "that feel" you know what i mean?? It's hard to explain. It's different than your typical yaoi. These authors have a really distinctive artstyle. If not very simplistic, its very stylized... Yknow, it's just those kind of BL where you dont mind any plot as long as the delivery, the atmosphere and the vibe is good. well, at least in my opinion.
Unique and unusual BL's
This list is in order from my most favourite to my least favourite
Welcome
-Scary, Quiet, Delinquent, Gloomy, "Rumoured",
Manly Seme/Uke
-Cute, Friendly, Popular, Extrovert, Girly Seme/Uke
Opposites Attract
This list does not include mangas where one of the characters is "scary" and the other is just normal and vice versa (cute MC with regular guy) all mangas will have "opposite" personality traits
No vintage/old mangas included
Feel free to give any suggestions