Choku!, Watashi ga Motenai no wa Dou Kangaetemo Omaera ga Warui! Recommendations
Both series are by the same author and have similar audiences in mind. Plus in both stories the main character's a quirky girl that you can't help but like, and who also adds quite a bit of humor to the mix.
Choku and Watashi ga both have a very strange feel to it, and when I mean strange, I mean a little disturbing at times (but in a funny way) The art style is somewhat similar, but for the most part the awkward and strangeness of both mangas are what really make it similar. Choku however focuses more on the relationship of the boy/girl, while in Watshi ga it only focuses on the girl and her attempts to become normal.