You can get 1% in a savings account in the US. TBill rates are all less than 0.25%. The latter has tax benefits, but not enough.
One good way to "get a higher return" (for some at least) is to pay down debt. If your mortgage is at 3%, whatever you pay off is "earning" 2ish% after tax. If your margin loan is at 1.5%, anything you pay off earns 1.5% (because the interest isn't deductible.)
Something like a credit card or student loan in places where those are common might be better targets. They usually have ordinary compounding interest, and the delta in your net worth (assuming no other effects like taxes) between investing P dollars at an interest rate R for time T is identical to paying off P dollars of a debt at an interest rate R and waiting till time T has elapsed.
That way I get to earn 2/3% interest and have liquid access to my money.
https://www.macrotrends.net/2526/sp-500-historical-annual-re...