maybe try Sign ? idk if thats what ur looking for
Under the green light (not really wholesome tho...)
Taming the Tiger(not nerdy but cute/puppy-like)
https://www.mangago.me/read-manga/love_plan/ = super in love puppy
https://www.mangago.me/read-manga/the_last_step_on_the_way/ = emotionless puppy, also super in love
https://www.mangago.me/read-manga/omae_no_hou_ga_kawaii_kuseni/ = emotionless puppy, super in love
https://www.mangago.me/read-manga/home_ep/ = mf is so cute like wtf, acts and looks like a puppy
https://www.mangago.me/read-manga/mother_s_spirit/ = clueless puppy
https://www.mangago.me/read-manga/off_track_crush/ = looks like a puppy, bro is crazy in bed
https://www.mangago.me/read-manga/a_guide_thicker_than_blood/ = he literally looks like a scared puppy all the time, cute af
Any nerdy top recommendations? Cute and soft puppy top but very in bed, please and thank you (bonus points if both of them are nerdy, also want it sweet and wholesome