Special A, Kapon (>_<)! Recommendations
The first thing I noticed when I was starting to read Kapon was how similar it was to Special A. It starts out about a girl who tries her hardest to be number one in the school, but is forever cast aside as number two by her rival. The strength and determination from the two female leads, and the overall attitude from the two male leads are very similar. The similarities end after that, but both are enjoyable reads.
Kapon (>_<)! is a shorter Special A with smut.