Tennis no Ouji-sama, Ookiku Furikabutte Recommendations
Oofuri is a sports Anime... It's about Baseball.. While Prince ot Tennis, like the name tells us all, is about Tennis.
And as real Prince of Tennis fan I can say that the sense of humor (and especially the gay moments..) in both series are very similiar, sometimes even the same.
Ookiku Furikabutte offers lots and lots of awesome characters who develope their personalities over the series and who you learn to love and hate, and so does the Prince of Tennis.
In any case, it's both worth watching it!
They are both anime revolving around sports. Also, they are both pretty funny. It's much shorter than POT, so if you don't have time to watch 100+ episodes, this would be a good show to watch.