For me i would suggest to buy usdt pairs, it us trending right now that usdt pairs is profitable when you choose the right alt coin pair on usdt, with low cost fee you can trade low amount of it and you may become effecient in trading
Yes, because it is a currency pair in general and also the USDT pair is also very much in the crypto space so it is very easy to calculate when someone wants to trade or invest in certain cryptocurrencies.