Arakawa Under the Bridge, Bokura wa Minna Kawai-sou Recommendations
light hearted romance.good dose of comedy.light on the cliche drama side.these are the main points which appealed to my taste.
also the main heroines for both are withdrawn and the protagonist makes effort to reach them.
both have a colorful sub cast
Love comedy with funny, eccentric seccondary cast, and gorgegous art. Actually, it seems Brain's Base is trying to emulate Shaft's animation style.