If you dont mind bl then:
https://www.mangago.me/read-manga/zutto_kimi_no_turn/ (i dont really remember if the smut here is intense or not, or is it just brushed over)
https://www.mangago.me/read-manga/eat_me_up_my_husband/ (def smut)
https://www.mangago.me/read-manga/inu_mo_arukeba_koi_ga_hajimaru/
https://www.mangago.me/read-manga/bursting_with_youth/ (i think compared to any manga i inserted here, this here is the most fits)
https://www.mangago.me/read-manga/saeki_kun_ni_tsunagatchau/ (this too)
https://www.mangago.me/read-manga/makitakun_no_koiji_wo_jamasuru_to_shinu/ (personal fav)
https://www.mangago.me/read-manga/mahoutsukai_wa_furete_tokeru/
https://www.mangago.me/read-manga/seiheki_strike/ (also this, i think)
OMG THANK YOU FOR UR SERVICE <33
really good recoms
the main charcaters are super wholesome but its a smut manga/manhwa.