I don't know if this one is popular or not but they're very cute ╥﹏╥
https://www.mangago.me/read-manga/mayonaka_no_ore_wo_mite/
Here are some that I just keep coming back to everytime I want something cute. Hope they also help you (please feel free to dm me if you need to talk), I send all the best wishes and strength your way:
https://www.mangago.me/read-manga/dear_signal/
https://www.mangago.me/read-manga/hetakuso_love_step/

I need the cutest best BL manga that's not extremely popular to soothe me rn I'm depressed asf