Currently FIVESTAR exchange is encountering problems it seems : they published they had problems accessing their cold wallet.  Volume is low on this exchange, best to avoid it untill they solved the technical problems.

Most trading now on PoloniDEX (with peaks to 160 000 USD per day), this is a TRON DEX (of Poloniex), so it can be trusted and withdrawal/transaction fees are very low.

STEX is also a very good exchange, and you can trade the 3 different version of FREE (ERC20, TRC10 or BEP20)