I guess everyone will be happy if they can always have access to translate the alt-coin they hodl to cash.
So what exchange let us do that if the coin not listed? I guess hard to find!! if you lucky you get it forkdelta
If your coins are listed you hope for volume in a serious exchange like the top ones which has really high requirement before listing
which lots of coin fail to pass because it mostly likely not a well organized project
I use
www.huobimena.com for trading and also OTC deals
Telegram channel:
https://t.me/HBMENAI do trade my altcoins in the top most exchange 'Binance'. A good and best exchange though recent hacks really brought bad names to the exchange. The special thing i like here is the crowd. The trading volume is really high and yes really interesting to trade in here than other exchanges.