Hmm I’m not sure if this is what you’re looking for since it’s pwp (=・ω・=) but the only one i could think of was this one. Literally like 80% of it is just smut but it has the “training” aspect that u might like.
https://www.mangago.zone/read-manga/pet_keiyaku/
I think this one is great, it’s mostly sexual (they meet to literally learn how to be better in bed) and the roles are reversed (teacher is uke/student is seme) but the art is amazing and it has that kind of adorable feeling this one gives between the couple. It’s also completed wich is a plus.
https://www.mangago.zone/read-manga/the_good_teacher/
(づ￣ ³￣)づ
Does any one know any other BLs or yaoi that has a similar theme of one being a “puppy” and the other be more dominant and “training” their partner?!? It’s one of my favorite tropes!! I think it’s so cute when one or the partners takes on some caretaker qualities (๑•ㅂ•)و✧ hehe (anything but Make Me Bark lol)