@floyd jane: You've already received a lot of good tips but here's some free orchestral libraries that might have been missed.

This one has a lot of format options, including Kontakt:
https://versilian-studios.com/vsco-community/

These two are for Kontakt:
https://alpineproject.wixsite.com/main

https://projectsam.com/libraries/the-free-orchestra/

This library has a lot of hybrid synth string/choir patchesand multis for Kontakt:
https://www.cl-projects-sound-design.com/electronic-expanse.html

This previously commercial VST went free a short time ago (also, check out the "Sounds" tabs):
https://www.synful.com/

I would caution you against acquiring Solid State Symphony or Amadeus. They can seriously screw up your workflow---they're addictive and just too much fun.

Paj
8^)