if you have a lot of funds I advise you to mediate and divide into three equal parts. Divide everything into usdt, usdc and dai, in this way you will split the risk. You can also think to invest them in lending or staking and earn extra profit from them.
Best idea to divide portfolio and DAI is the best stablecoin, IMO. Also, lending or staking is a great way to compound our stablecoins and BUSD might be a good choice to farm as more defi adoption is going on BSC. For ethereum blockchain, dai and usdt is a great choice to compound.