I know it's a bit late on this, but you can avoid the coinbase wallet and fees, by sending from coinpot to a blocktrades buy address.
If you want one that grows faster I just dropped a twitter post about cointiply.(I've noticed they sometimes frown on referral links here.)
https://twitter.com/CoinsAndChains/status/1015094307945177088
Have fun, I think it's funny we had the same thought.