Other options than HBD? I honestly can't trust it as a stablecoin. I've heard crypto.com offer decent apr for staking USDT.
Nexo is excellent for earning some solid yield on a safe, insured platform. Up to 12% APY (if you're a non-US citizen and choose to earn rewards in $NEXO tokens), with a max of 10% earned in stablecoins directly. I've used them for like a year and a half and earned some great returns, you can also hold other coins here as well and earn 6-8%.
Also a Nexo fan.