A totally nebulous question. Do some shopping. Big chain sporting goods and outdoor stores usually have bike sections and free looking. Any decent LBS should accommodate a shopper. Check out major brands on line as well for the official poop.
Get an idea of what's out there and what might work for you. Then come back here. I'm sure there are any number of people here who would be happy to help you. You have to help them too.

Shopping can actually be fun. Get into it.