Open a Premier Savings acct with Upgrade by 5/31, deposit at least $15k into it within 30 days, and leave the money there for 60 days. Deposit:
$15k receive $50
$30k receive $100
$50k receive $200
The acct pays 5.21%. Upgrade is a fintech. Your funds are held at Cross River Bank.
https://www.upgrade.com/landing/promo/c8d7aab0-e5e4-4192-b50f-8a07927db9a9?promotionProgram=RAF_PSAV_01