If you want to try out Pokémon Green in English, just go here:
Note: This is a patch for a ROM of Pokémon Red, it's the same link I posted before.
You have to apply the .ips file contained in the zip to a clean Pokémon Red ROM, which you have to get somewhere else. To do so use "Lunar IPS" for example.
Been playing this, was gonna try and message the creator to see if I could get the ips. posted here, for what seems like such a simple a lot of work clearly went into this