Goofy, over-the-top edge that doesn't take itself too seriously isn't really my cup of tea; that would be the likes of trash., Cynthia the Mission, Beageruta, Murcielago or Dead Tube. Ingoshima is fun, though. There's also Killing Bites and other Murata Shinya manga which are in a similar vein, but I actually like most of those ones and can recommend them in good faith.
Lastly, while it doesn't really fit the list, I'll still plug Misu Misou because it's flat-out great and deserves to be more popular.
See if there's anything that catches your eye there.