This is not an advertisement, but if you have cash on hand, there is a %12 APR for USDC on Binance Earn, up to 100K USDC.

Seriously, it’s incredibly high, earning nearly $30 a day. It brings in 1K USD a month, which is very high for 100K USD. I don't know if it's a campaign or what, but I've gathered all my cash from here and there and put it all here. Even if it stays for a month, this APR will yield nicely; let's see if the rate will change.

I think it might stay like this for a while. Currently, the APR for USDT is %12 up to 200 USDT, but it drops to %4 after 200. Normally, USDC was like this too, but now it's increased. Rather than letting cash sit idle, it can stay here, especially if you're holding USDT; you can convert it to USDC just for this reason until this APR decreases.