There are 76 pages of free software synthesizers, at around 10 per page, here: https://vstwarehouse.com/software-synthesizer/
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Jazz relative beginner, starting at a much older age than was helpful.
Kawai MP6, Korg M50, Ui24R, Saffire Pro 40.
AVL:MXE Linux; Windows 10; Win8.1: Scarletts
BIAB2022 UltraPAK, Reaper, a bunch of stuff.