would infinite flow stories also work? they're kind like time travel... I only infinite flow ones but idk I find that they're sometimes similar. If that's not ok uh idk...
Welcome to the Nightmare Game (novel)
Global Examination
Try these!
https://www.mangago.me/read-manga/meeting_him/
https://www.mangago.me/read-manga/i_m_here_to_take_my_revenge/
https://www.mangago.me/read-manga/my_suspicious_roommate/
https://www.mangago.me/read-manga/again_1/
https://www.mangago.me/read-manga/bokura_wa_nando_mo_koi_o_suru/
https://www.mangago.me/read-manga/samishigariya_no_love_letter/
https://www.mangago.me/read-manga/not_equal/
any time travel bl recommendations?