There are several exploit hosts for the ESP8266, but none for the ESP32. When I first got my PS4, I only had ESP32's laying around, so while I waited for ESP8266's, I decided to see if I could write one myself. The ESP32 is quite capable, and is a little smaller, so why not. The flash size is a limiting factor, with only 3mb available. Here is a link to the source code on github, with instructions for making your own .bin file, flashable with nodemcu-pyflasher:...
[RELEASE] ps4jb-ESP32
[RELEASE] ps4jb-ESP32