not sure if this is what ur looking for but maybe these?
https://www.mangago.zone/read-manga/the_archmage_s_restaurant/
https://www.mangago.zone/read-manga/housekeeper_in_a_dungeon/
https://www.mangago.zone/read-manga/healing_life_through_camping_in_another_world/
https://www.mangago.zone/read-manga/bizarre_restaurant/
https://www.mangago.zone/read-manga/the_world_s_best_engineer/
I have a list of manwha kinda like this and one of the best ones was “The Ultimate Shut-In”
I have a list that you might like
https://www.mangago.zone/home/mangalist/2381766
Does anyone have recs similar to this? All I know that is somewhat similar to this is "Solo farming in the tower"