Im watching two atm, want to add more though.
Angels of death: A girl is alone on a room and she has no idea how she got there, then she arrives to an elevator, gets to another floor and realizes the person in that floor is trying to kill her. Wont say anything else so i dont spoil it but ive liked it so far.
Sirius the Jaeger: Its about vampire hunters, the fights are really cool and the second episode reminded me of one from fma, although its not the same :p
I started watching them cause the titles caught my attention, want to add some comedy though, havent seen those in a while so i might start watching back street girls, sounds funny from what you said.