Near Forres? Oo! Loads!!! Big shame Jane hasn't blogged Aberdeen yet.... Hope I'm not too late!!!
Immediate thoughts are....
Top of the list has to be East (er) Aquhorthies, I'd say. And yup - the one near the airport, Tyrebagger (or Dyce) is cool! If you're using the A96, they're pretty close to it.
And there's Balquhain, which I've still never seen up close coz it's always in crop when I go (it was 2 weeks ago). You can even see that from the A96 - very clearly if you know vaguely where to look!
Or a detour up the B9119 would give you Cullerie (or Cullerlie) - too restored & manicured for some peeps, Sunhoney (wonderful but grass is very long at the mo) and Midmar Kirk (ace!).
Then there are the various 'Dunnideer sites' near Insch, but tbh they're all pretty ruined & only have a big effect if you can do 'em all.
But if pushed, I'd say if you're A96ing & wanna spend a bit of time at each site, you couldn't do any better than Tyrebagger http://www.themodernantiquarian.com/site/196
East (er) Aquhorthies http://www.themodernantiquarian.com/site/188
& Balquhain http://www.themodernantiquarian.com/site/184
Enjoy whatever you see!!!
love
Moth