So there are two routes you can take if you want some sort of gamified fitness bike at home. First one is the Peloton or one of the similar bikes that focus on the spin style classes. The other option, for those that are more into cycling, are some form of smart cycling trainer (like the Wahoo Kickr) or even Peloton like bike (WattBike) that actually gives you real power readings. This integrates with platforms like Zwift, TrainerRoad, or Sufferfest to provide more cycling focused fitness.

Peloton is great if you want the "spinning" experience, but not as great if you're just a cardio junkie looking at getting a "riding your bike" experience, but indoors.