 If you liked
Gekkan Shoujo Nozaki-kun
|
 ...then you might like
Yugami-kun ni wa Tomodachi ga Inai
|
Similar comedy that plays off the strange personalities of the main characters. This makes both mangas read in almost the same way although they share some differences.
Yugami has a lot of comedy elements, but it's a bit more character-driven and there's more development throughout the story. Nozaki is mostly comedy-focused, but the characters still have very defined personalities.
I personally enjoyed Yugami more for the story and main character, but Nozaki made me laugh in basically every chapter, and the characters are still great.
If you enjoyed either of these series then you'd likely enjoy the other one.