at this time I prefer USDT as the best altcoin and suitable for investment, because the price of the coin can be classified as a stable coin and far from the risk of losing money, but if you want to choose a coin under $ 1 then the right choice is doge, the explanation same as I said before.
Extremely weird choice, as mentioned in the thread above. Unless you are getting some sort of decent loaning rewards for holding USDT on an exchange, I can't fathom why anyone would hold USDT. It's not really an investment, no more than holding fiat is.
It's like saying invest in dollars and stuff them under your bed. Yeah, they won't lose money (except against inflation), but that's not really an investment strategy.