Look at what
https://www.powder7.com/used-demo-skis-for-sale is offering. I've bought skis from them, and I think they under rate the condition. Mine were listed at 8.5 out of 10, and I would have rated them 9.5 if Powder7 had done a better tune. Anyway, the price is right.
I agree with getting skis that are under 80 mm waist width. My 78 mm skis are great for everything you describe. The wider the ski the more difficult it is on a firm surface. Use the Powder7 search criteria with your length range, your width range, more on the playful side and less demanding, demo, with bindings, your price range. When you find something interesting, check the
skitalk ski selector Don't check any year or brand. Check your ability, frontside, women, waist width, and Tester's Choice. How about Powder7's Atomic Vantage 80 167, Fischer RC One 82 166 (maybe too advanced?), and the Volkl Yumi 80 161 is a great intermediate ski to learn on (maybe not advanced enough?) Check the skitalk ski selector reviews.