Stablecoins are not guaranteed at the moment, because stablecoins are based on the rise and fall of the $ itself.
My advice is don't put all your finances in stablecoins, it's better 50:50 you can try holding other coins like ETH, XRP or whatever potentially
This is a bullshit suggestion. Stablecoins is the safest coin if you want keep the value of your asset stable. The idea of the OP is to get profit safely even with small percentage while his assets is protected from crypto volatility. Investing on shitcoins will just make his asset exposed to a lot of risk since crypto market is on a bearish trend. This suggestion of yours is irrelevant to the topic.
@OP, BSC has a cheap transaction and theres a lot of DeFi project that offer liquidity farming optimization like automatic compounding interest. Just search on the top dapps of BSC to get your preferences option.