If you're looking for manga similar to L∞p, you might like these titles.
Arai, being a college dropout, could not find a proper job, so he ended up working as a driver and assistant for a high school Ghost Sweeper, Haraizawa. Little did he know, his next job would be coming from the hospital where his old friend is working at....
Kensuke Nimura has always been able to see spirits, but he never expected to find himself helping a girl named Kagura who battles evil spirits with her spirit beast, Byakuei. As it turns out, she's a member of the Ministry of the Environment's top-secret Occult Disaster Response Agency, and she's out to recruit him, too...
Timid Mikito is frequently bullied in school, his childhood friend Saki often coming to his aid, much to his embarrassment. All the boy wishes is to be strong for her, and one day, Mikito gets his wish. In his dreams, a mysterious being called Zakuro speaks to Mikito in front of a barren tree, and offers him the power he desires – in exchange, he must simply 'make the tree bloom'. Upon awakening, the student finds newfound strength and terrifying desires… and soon, he fantasizes about killing and eating everyone, including his friends and family. And as if things couldn't get any worse for Mikito, hunters appear, hunters who want him dead...
A young girl called Ene is searching for her parents? killer, Estoma. Her search leads her to a strange gravedigger called Mal, who she works with to find out a way to kill the immortal Estoma.
Her name is the "Faceless Woman". She is the organization's most powerful sniper, able to dispatch her supernatural targets with ease, as she is able to instantly steal their abilities before sending them to the grave.