I kinda only read omegaverse but I'll try to give you some options out of that too LOL but these are my comfort reads:
https://www.mangago.me/read-manga/define_the_relationship/
https://www.mangago.me/read-manga/romance_but_not_romantic/
https://www.mangago.me/read-manga/willow_love_story/
https://www.mangago.me/read-manga/one_room_ta/
https://www.mangago.me/read-manga/punch_drunk_love/
https://www.mangago.me/read-manga/unsleep/
https://www.mangago.me/read-manga/dirty_high/
https://www.mangago.me/read-manga/hit_me_hard/
This made me realise I mostly read stressful stuff LOL
you said this to the wrong person, I was afraid of recommending more bc some people absolutely hate it, but if you need more recs for omegaverse in different levels of comfort here you go: https://www.mangago.me/home/mangalist/3784248/

Any recs for these two it can be black and white manga as long as the art style is good. Is there any w no magic, action fighting, weird abilities stuff? I just want to read smth that’s not stressful that has a good buildup of romance and they get tgt. Only stressful thing would be like a dramatic break up and makeup like third ending.