Solar is very cheap and has same equipment with added regulator between cells and battery. Pro: Free energy that lasts 25-30 years. You can make your own with off the shelf components easily or buy decent 200W kits for <2000$, like: https://www.amazon.de/-/en/Jackery-Generator-Portable-SolarSaga-Emergency/dp/B09NQ77VZ2

Cons: Only for certain weather and locations. In an apartment you may not have right orientation or space

Bike gen is old, reliable tech that works in all conditions. Plus in an emergency, a bike is a good backup transport to have