I bought a Concept 2 BikeErg <https://www.concept2.com/bikeerg/concept2-bikeerg> two years ago, and have really enjoyed it. It's solidly built, it accepts standard cycling components (I replaced the stock pedals for some clipless ones), and the damper-flywheel is smooth and somewhat realistic.

At $1k, it's both very expensive and much cheaper than a Peloton or NordicTrac bike. If you're looking for a home setup, I highly recommend it. It won't help you if you need classes or other social interactivity, but my exercise time is me time.