There are many altcoins today, is there any way I can exchange them for free. Changelly charges a lot, other exchange services too. Most of the excahgnes do not have the token I want.
Any service that provides the same?
The only way to exchange them for free is directly contact the respective coin developers and convince them to exchange their coin for free. Apart from that no other option is left where you can exchange your coins for free, As nothing comes free in this world, anything you have to give for all work.