I may be bias but here are some that either touch some deep topics or simply have a plot that goes further than just them fucking
https://www.mangago.me/read-manga/kiraide_isasete/
https://www.mangago.me/read-manga/unromantic/
https://www.mangago.me/read-manga/the_origin_of_spices/
https://www.mangago.me/read-manga/surge_looking_for_you/
https://www.mangago.me/read-manga/tadaima_okaeri/
https://www.mangago.me/read-manga/exclusive_no_love_zone/
i need a omegaverse with good plot. (long and short stories allowed)