i suggest to check coinmarketcap to make the right decision, and u should understand you want to go in long term or short term. for long term i go only in eth based dex project with credible backgroung. now reserching xsigma stablecoin dex
i heard about xsigma, now checking them. looks nice and they are backed by public company. in 2020 i invested in polkadot, nice project as for me