It is pointless going for cryptopia, they charge more than their weekly volume. Nova is stopping now, so that leaves Yobit, which seems to favour tokens at the moment, coinexchange.io, gate.io and coinsmarkets.com, and maybe some others. I am not in the loop with exchanges at the moment. I think c-cex volume has gone really low, yet people have not quite grasped that yet.

Any of the three, Yobit, Gate or CoinsMarkets seem like a good start.

https://coinmarketcap.com/exchanges/volume/24-hour/

Many are not relevant for an altcoin, but it gives dev an idea.