Goulart Knights: Evoked the Beginning Black

Shoujo harems with similar art styles which both take place in similar European style towns. The feeling they give off is similar and they have a similar mix of comedy and drama with some action. 

Both animes have 'knights' or 'purifiers' with holy supernatural power that battle with demons and people know of the demons existence. They also share good graphic and bishounen characters. The differece is that Neo Angelique Abyss emphasizes on the main heroine and her thoughts and twists her somewhat ordinary life in adventures. While in Goular Knights all the main characters already know of their power. The series also have a similar reverse harem feeling, but in Goulart Knights the female heroine is just a kid, who is temporarely helped by the knights. 

action/supernatural with some guy pulling weapons out of other people. 

Both anime have bishounen who try to help a girl, they do whatever they can to solve her problem. Also some of the guys have similar personalities. They also wear uniform in both.  

The story is similar with there being creatures that attack humans and a group of people able to fight the creatures with supernatural abilities and both series are set in a fictional European setting. In the case of DGM, Exorcists use their Innocence to fight Akuma and the Millenium Earl while in Goulart Knights the Goulart Knights use their spirit and Holy Grail to fight the Archon.