Most good garage door paints are water-based exterior paints, such as BEHR Exterior Paint and Primer. This particular paint provides a durable finish, and because the primer is included, there is no need to prep the garage door first.
Sico, Laurentide, Bejamin Moore and Sherwin-Williams all make comparable exterior paints that work well on most types of garage doors. Regardless of the brand, choose a paint that has a semi-gloss finish, as the high sheen is able to withstand wear, resist moisture and reject fading or stains. Pair with a suitable outdoor primer if the paint does not include primer, otherwise the new paint job may peel and flake off.