Back in 2017, I wrote an article about plyometric training. The aim of that post was to introduce plyos, outline the mechanisms at play and to showcase their relevance to tennis performance (from both a research and practical perspective).
That article was a good starting point. It highlighted the diversity that exists when we look at tennis movement...and how plyos, because of their versatility - ie. they can be performed in a multitude of directions, velocities, amplitudes etc - might very well be the most important ingredient when it comes to better on-court movement.