Having good research is a must to get or to know what will be the best coin for trading we have to choose. Fact that volume is one of the top indication to know if the coin is good for trading but there's way more like, understanding its platforms, knowing who's people behind it and on how they run and managed. For me yB token is a good and active option for suggestion on how to choose best coin for trading.
Now Defi projects are very popular, but many of tokens of defi projects are traded only on decentralize exchanges and they do not have liquidity.
Also some Defi projects use staking systems to increase the income of tokens holders and encourage token holders not to sell tokens.
Here is information about staking
https://medium.com/bonfiorg/introducing-bonfi-web-staking-7368467d18cc