Check out xnomad. It seems to me the closest imitation to Xmonad, and doesn't need messing with a config to get working (that is, comes with good default keycommands and limited layouts). It's not in Haskell, but the authors experimental ObjC-based-but-many-times-cleaner-and-cooler language.
Install tranquil, and then I recommend using the .app bundle I made on my fork (https://github.com/JasonJAyalaP/xnomad/raw/master/xnomad.app...). I added a nice icon and made it much simpler to quit and launch it.