You'll never find a cigar to replace a true Cuban, but you can find some great cigars that are legal in the USA Also, depending on where you live you can find them for much cheaper.

You can't go wrong with cigars made by:

Carlos Torano
Rocky Patel/Indian Tabac
CAO
Padron

Check out the reviews here on this site and others, pick out a few you like give them a try and keep your own notes. You'll be able to figure out soon what cigars you like.