Outback strut assemblies with new KYB struts and 16” Subaru wheels of your choice will give good lift results, larger wheels/tires and it’s easy.
sometimes very early 90s legacys and/or Imprezas have slight suspension variations. Make sure that’s not the case for whatever approach you take.
Scott builds lifts and is a long time member here. A 2” lift would be easiest to install.but then you’re stuck with legacy fender /tire clearance.
https://www.sjrlift.com/