Buy the I series Bond before 10/31, and get guaranteed 9.62% for first 6 months. This bond is adjusted every 6 months to pay the current inflation rate in interest. If inflation remains high; so will the bond rate. This is a government bond. It's as safe and guaranteed as you can get. The only bad part is there is a $10,000 max per year allowed. This is a great deal!
https://www.treasurydirect.gov/indiv/research/indepth/ibonds/res_ibonds.htm