Reddit mentions of Stylistic II/V7/I Voicings For Keyboardists

The Jazz Piano book is a good start. I would also recommend Stylistic II/V7/I Voicings for Keyboardists by Luke Gillespie.

Basically you will want to know your vocabulary of scales and chords, especially all the 7th chords (minor, major, dominant, minor-major, half-diminished, fully diminished in all inversions, and in other combinations like drop-2 or drop 3). Jazz uses a lot of modes and altered scales as well. Start listening to jazz musicians, not just pianists, and transcribing their lines and/or chords. Pick a few standards you like and practice playing the chords.

It's a lot like learning another language: you learn the basic building blocks (voicings, melodies) and combine them to build larger ideas (tunes). Start slowly and practice with a metronome as well so that you don't neglect the rhythmic aspects of jazz and so you can play in time. As soon as you are ready, find other musicians to practice with. Jazz is live, dynamic music. Go see some live jazz near you as soon as possible and pay attention to how the musicians listen and interact. Listening is at least as important, if not more so, than what you actually play.

Additionally, check out this book by pianist Luke Gillespie on chord voicing. Its only like 20 bucks for a goldmine of chordal information

https://www.amazon.com/Stylistic-II-V7-Voicings-Keyboardists/dp/1562240846