My wife just bought a peloton- she’s riddden it more in a month than a real bike in her whole life!! Plus my daughter is too and she is too anxious/self conscious to ride outside.
I’ve done a few rides and will do an FTP test next week. There is a specific Powerzone training section with a proper pro-cyclist instructor (although I quite like some intervals with the eye Candy too!)
My missus does combined ride/yoga classes with them too.
It isn’t cheap, but cheaper than a gym membership she won’t use, and she’s got up at 7 every day this year to exercise before work.
It isn’t zwift, but it’s bloody good at what it does.