I've been using
Shipito to forward products bought online in the US to Russia. Although their fees were smaller in the past, I can't find any service that is better. There are many small companies and just people who offer alternatives, but they are too risky for me.
Also I use Shipito because I really like to consolidate my packages and to remove boxes and other stuff that allows to make postage fees smaller.
p.s. I wish they had an office in a state where there are no any sales taxes. Actually they do have them, but right now they don't offer consolidation and can ship by USPS only from California.