Big bottom, little top?

https://www.mangago.zone/read-manga/kabukichou_bad_trip/ ( you might have read this though)

https://www.mangago.zone/read-manga/terano_kun_to_kumazaki_kun/ ( they are highschool beware)

https://www.mangago.zone/read-manga/master_x_secretary/ (plot : 0/10, smut 4/10)

https://www.mangago.zone/read-manga/makitakun_no_koiji_wo_jamasuru_to_shinu/ ( they are also highschool beware)

https://www.mangago.zone/read-manga/gwanggong_industrial_complex_please_candy/ ( plot twist, trigger warning: r@pe

https://www.mangago.zone/read-manga/sutenaide_my_hero/ (Top omega x bottom alpha, trigger warning: r*pe)

https://www.mangago.zone/read-manga/midnight_rain_ctk/ ( I love this one, trigger warning: r*pe? I mean...uh it's non-consensual masturbation so yeah...but aside fromn that, this is a good manga.)

https://www.mangago.zone/read-manga/koi_ga_ochitara/ ( I love this one, Both are legal adults and no trigger warning)

https://www.mangago.zone/read-manga/usachan_ookami/ ( this one's funny, but abit of a red flag?)

https://www.mangago.zone/read-manga/cupid_ni_rakurai/ ( beware they are in highschool, bruuu I forgot to add" in highschool" to other mangas, oh welp)

https://www.mangago.zone/read-manga/plaything/ ( how can I forgot about this shittttttttttt, trigger warning :r*pe, nglI am waiting for updates, yeah.. but I'm not going to defend the r*pe part duhhh, this is the "Big bottom, little top" you're looking for.

The fact I have read all of them is scary!!

I'm guilty too, you're not alone, but let's not defend those toxic tropes

https://www.mangago.zone/read-manga/heartless/

Ah that too. Its super cute https://www.mangago.zone/read-manga/dekoboko_sugar_days/

https://www.mangago.zone/read-manga/boku_de_mitashite/
https://www.mangago.zone/read-manga/amaregulus_soldier_soother/
https://www.mangago.zone/read-manga/love_you_satsuki/
https://www.mangago.zone/read-manga/evergreen_yaoi/
https://www.mangago.zone/read-manga/holliday/
https://www.mangago.zone/read-manga/the_wizard_and_the_neet/
https://www.mangago.zone/read-manga/app/
https://www.mangago.zone/read-manga/plaything/
https://www.mangago.zone/read-manga/the_warrior_and_the_deity/
https://www.mangago.zone/read-manga/reincarnated_into_demon_king_evelogia_s_world/ (My all time fav)
https://www.mangago.zone/read-manga/kakumei_no/
https://www.mangago.zone/read-manga/rabbits_ejaculate_in_3_seconds_mgs/

Omg the way I have read everyone you mentioned here is crazy!!

I keep checking and I have really read all of them! jidodfjsfnskdjsbdb

OP!!!!!! Ignore those I suggested: TRY LOVE TRACTOR: https://www.mangago.zone/read-manga/tractor_full_of_love/ I - I can't believe I forgot about this masterpiece: 1000000/10 GREEN FLAG

Or yo might already read this one? nvm then