Deadlock
Ongoing | Takashina Yuu,aida saki | 2011 released
For kinda similar feel play the game Lucky Dog Bad Egg. I don't remember much from this manga now (it's 2023 rn) but in the games they're actual criminals, including MC and the MLs (you can pick who you want for the romance)
Yondaime Ooyamato Tatsuyuki
Complete | Scarlet Beriko | 2014 released
Charao-kun to Haraguro-kun no Himitsu
Complete | Takenaka Sei | 2000 released
2018-02-03 23:31 marked
The Last Zombie
Complete | Bamwoo | 2016 released
2019-03-11 19:32 marked
cute :3 a zombie who became more human like because of a cure that he was given by a doctor. Eventually, they both fall in love~
Beast & Feast