If you don’t want to get old used struts that may or may not be blown or weak, I’d go for the ones on RockAuto. They are fairly cheap considering they are the genuine ones that the dealership would supply. Not something a parts store would have.
I bought the cheap-o Gabriel Ultra struts and shocks not too long ago. But will likely go for the FE5 AC Delco units if I end up getting lowering springs. The Gabriels were stiffer than what came stock on the FE1 suspension. A lot better than when I’ve put Monroe struts on these cars.
Also look into getting the aluminum control arms. The early years aluminum arms will fit the FE1 cars. That’s one of the next things I’m going to install on my Cobalt.