Were you using exchanges to store your cryptocurrencies? if so, this isn't advisable as you may have already know. The best middle ground approach right now is to withdraw your funds to a non custodial wallet if you're not actively trading.
If you can check the post well, then you will see that the OP didn’t mention storing coins on exchange, all the OP needs is an appropriate exchange that can be used for trading. I know how risky it is to leave a coin on exchange. The best place to leave a coin is a non custodial wallet, but as we can see, the advice you are giving the OP is not what the OP really needs. You should be advising the OP, maybe if he made mention of storing coins on exchange.