Give me recommendations

https://www.mangago.me/read-manga/what_happens_when_the_second_male_lead_goes_on_strike/
https://www.mangago.me/read-manga/regressor_instructional_manual/

https://www.mangago.me/read-manga/trash_of_the_count_s_family/
https://www.mangago.me/read-manga/stuck_in_my_sister_s_dating_sim/
https://www.mangago.me/read-manga/what_happens_when_the_second_male_lead_goes_on_strike/
Scum Villain's Self Saving System light novel
I'm ngl the isekai genre was originally just loser men getting transported to cool worlds so I'm sure u can find hundreds of anime and manga LOL

https://www.mangago.me/read-manga/please_don_t_come_to_the_villainess_stationery_store/

https://www.mangago.me/read-manga/tricks_dedicated_to_witches/