Hi Coach,

You're unlikely to find any specific effect settings that will work for every jazz guitar track, but once you wrap your head around how to use EQ effectively, you'll be able to sculpts sounds to your liking and fit them in a mix on a track-by-track basis.

There are lots of great tutorials online, this EQ one has some great tips (#2 is great for finding and dealing with problematic frequencies):

https://ledgernote.com/columns/mixing-mastering/mixing-eq-tips/

Thanks
Kent
PG Music