What condoms would be good for a smaller size penis?

Obviously 1 that fit. Obviously you want one that fits. There is a considerable variation in size from one guy to another. Since they are rolled up, a short length should not be a be a problem but if your diameter is small that the condom is not secure and it slips off to easily it won't work. There once was a condom that had a mild adhesive on the inner layer to help it stay in place. Keep trying to find one.
Condom size. Here is an extensive listing of the names of smaller condoms made by an extensive list of companies: http://www.condom-sizes.org/condom-size-chart/condom-size-chart#small.