+1 for Indiginus. Their Blue Street Brass is good, as well as their range of guitars and the like.
SWAM saxophones: https://audiomodeling.com/swam-engine/solo-woodwinds/swam-saxophones/
Pianoteq for acoustic & electric pianos. https://www.modartt.com/pianoteq
Spitfire Audio do some really nice stuff, though they lean fairly heavily towards cinematic. https://www.spitfireaudio.com/
They have some good free instruments in "LABS". https://labs.spitfireaudio.com/?sortBy=prod_products_labs_latest

YMMV.


Jazz relative beginner, starting at a much older age than was helpful.
AVL:MXE Linux; Windows 11
BIAB2025 Audiophile, a bunch of other software.
Kawai MP6, Ui24R, Focusrite Saffire Pro40 and Scarletts
.