Herretik has done some very interesting ones:
https://herretik.deviantart.com/art/...ners-676552904
https://herretik.deviantart.com/art/...Size-480526518
There is also the chapter in which Misty and her friends are shrunken by Sabrina after defeating Ash. For now, all I have been able to find is a short fragment of that scene:
https://www.youtube.com/watch?v=EpQ-3sgKfyQ
Here the full episode (in Portuguese). The shrinking part starts at 12:55:
https://youtu.be/errbGQZXjAg?t=12m55s
Damn it, I recall feeling extremely uncomfortable by that time, feeling a so intense fetish pleasure every single time I watched that scene, as a mere kid I was by then.