There are a number of android emulators around, but none of them are likely to be accessible due to the fact that they don't come with Talkback by default. So, you'll need to install talkback yourself, either from [google play], compile it from [source], or find an apk to install elsewhere. As for emulators, there's a list [here] that includes Nox Player, BlueStacks, MEmu, Ko Player, Genymotion, Android Studio, Remix OS, ARChon, BlissOS, AMIDuOS, and Leapdroid. I can't say how easy it is to navigate any of these, and again you'll likely have to manually install and/or activate talkback yourself, though maybe others may have a suggestion for a specific emulator that might be better.