Quoted By:
I can recommend:
-Battle Club: Fight manga, lot's of ecchi
-Sundome: Lot's of ecchi and a good story
-Jigokuren: Love in the Hell: Very funny, less ecchi but a lot of "teasing"
-Negima!: Occasionally ecchi scene, but no nudity. It's still a good read though.
Image from Jigokuren: Love in the Hell