I think the USDT you should use because most of the exchanges their sites are offering that so once you selling your crypto you can use that. When I selling my cryptocurrency to the exchanges I convert also to that fiat but I'm not transferring to my bank account because I reinvest again those money that I earned to the coins again to earn more money and that you should do also.
I also do the same every time I sell crypto assets. I'm not going to pull it into fiat. I prefer to keep it in USDT.
as usdt pairs are also easier to trade compared to other crypto pairs which are very volatile