Open street cam looks pretty cool. I wonder how they're combining all of those images. Just looked it at, they're just a sequence of images of a drive. Don't expect a google street view like experience.
It's completely depended on what people contribute, if you collect 360 images with a 360 camera then you can get the google street view like experience. The community contributors to Mapillary have done a lot of 360 imagery.
It's varies a bit depending if you're capturing via car, bicycle, foot or any other mode of transport, then again based on your budget and how much effort you want to put into your setup.