I suggest BNB because bnb is raising price day by day . And the usdt is stable crypto currency. If you just want to save your portfolio then you should select usdt but if you want to earn and want to get some profit then you should select bnb.
I agree with your view, BNB is getting better day by day, even this coin continues to be stable in the market until now, even though there are corrections that occur at certain times, whereas if you want to save your portfolio then it's better to choose Usdt, but I think to get maximum profit in the future, you should choose BNB as a promising investment.