Star Driver: Kagayaki no Takuto... Well, it's a little more on the friendship-side isntead of romance, but it's a really great, really funny series!
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Another great one is Dragon Crisis! It has an interesting plotline, complete with epic dragon fights, and it's romantic in a cute, funny way.
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I'll go for one more...
Romeo X Juliet. It's the perfect mix of AMAZING fighting and romance (obviously, since its Romeo and Juliet). But the plot's a little darker and there's more storyline to it than the original story. ^_^ Also, lots of twists and more characters to love <3
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Hope you enjoy those! ^_^