Sign up for a health savings account and USE IT. (United States specific advice.)
It lowers your taxable income. The only caveat is you have to remember to use that money to buy things you were already going to buy anyway. Convenient hack to know what you can and can’t use: Doordash now labels HSA-eligible items at CVS. You don’t have to actually use Doordash to see which items you can buy with your HSA card.