with volume increasing lately, it would be welcomed to more exchanges, like Bittrex for example.
Most of the Exchanges want Money to list Coins, for instance Novaexchange, one of the cheapest:
The only other major fee with Novaexchange is to list a new coin. If you made a new coin and want to list it, then Novaexchange has a Pay to List service. Currently, the platform charges a setup fee of 1 BTC along with a yearly fee of 0.25 BTC. The yearly fee is waived for coins that have a trading volume of at least 0.2 BTC over a 3 week period.
actually novaexchange is closed til next year now
but afaik
coinexchange is an option that probably don't charge a lot to list.
maybe
kucoin couldbe an option too.
and of course
bittrex since they don't charge for a fee of good projects if we fir their parameters
pretty sure that BTX could start trading there if devs submitted a proposal!
Maybe they could look at COSS.io exchange, dont know if they require a listing fee, but considering COSS is very new, i dont expect that