Now most 9-3 users will talk about different springs and strut combinations.
Each has there own view and need.
For my 9-3 I used Koni yellow adjustable struts - and kept the standard original springs. I replaced all the main bushings with non-poly original parts. ** except the strut mounts - as I couldn't find the original SAAB version and I wasn't going to use pro-parts.
You might want to look at a Bilstein or Koni Struts with Vogtland or Lesjofor or Eibach springs. These are commonly used.
PartsforSaabs in the UK for example has Bilstein B8+ Lesjofor springs for $465 USD.
hope this helps.