You have the choice of magnifying or non-magnifying finders. On a small scope there is a lot to be said for non-magnifying finders. These can be as simple as two holes that line up together, or a Telrad, which is a LED device that you use a illuminated bullseye to center on the object you want to see, while looking directly at it. A Daisy bb gun LED sight works very nicely on a small scope, and is inexpensive to boot. Another possibility is a small gun scope.
Small ones are available at inexpensive prices at many department stores.
These scopes have the advantage of being easily adjustable. If you have a wobbly mount, you can try a few things. A good heavy grease can help in the azimuth section of the mount. If these don't work, you might consider a Dobsonian mount. Alt-Az mounts that use Teflon bearings, and can be made for both refractor or reflector telescopes.