Treasury bills mature in one year or sooner. Treasury notes stretch out up to 10 years. Treasury bonds mature up to 30 years. TIPS are securities whose principal value goes up or down depending on the direction of inflation.
https://www.moneyearningideas.com/safest-investments/
Savers must act fast to secure the best interest rates as banks have started to pull top deals just days after launch. Several of the best-paying easy-access savings accounts, bonds and Isas have been withdrawn this year, according to analysts Moneyfacts.
https://www.telegraph.co.uk/personal-banking/savings/savers-have-just-days-secure-best-interest-rates/
High-yield savings accounts typically pay a much higher APY than traditional savings accounts Interest is compounded daily, which means you’re earning interest on top of the interest already earned
https://www.mymillennialguide.com/5-percent-interest-savings-accounts/
Which banks have high interest savings accounts? Vio Bank: 1.75% APY. HSBC Direct: 1.70% APY. Marcus by Goldman Sachs: 1.70% APY. Comenity Direct: 1.70% APY. Citizens Access: 1.70% APY. Popular Direct: 1.70% APY. CIT Bank: 1.70% APY. WebBank: 1.66% APY.
https://www.investopedia.com/personal-finance/banks-pay-highest-interest-rates-savings-accounts/
pdf for "12 interest rate investments".(Page 1 of about 18 results)