IDEX is actually the only one to point out now, but in the real essence I am not yet impressed with any decentralized exchange, and not at least for now. In terms of usability, security and some other things when it comes to being a decentralized exchange, not to even talk of liquidity.

I will say there is no best decentralized exchanges yet, and there are just very few ones that we can just point to, in that regard and possibly hope for the best in the long run with them. DEX still has a long way to go in this space and I have not seen one that has been able to get it all.