HTC Vive, Oculust Rift, are the main providers
but Lenovo Mirage, Oculust Go and Google Daydream are options that are cheaper but do not have a lot of traction and support for apps.
You can take 360 photos with your phone or tablet, but 360 cameras allow you to take quick photos and video in 360. Nikon, Insta360 and Theta are major manufacturers of many models.
As you take photos and video don't forget, unlike a regular camera, 360 cameras take photos and video all around itself. If your standing anywhere near it and don't want to be in the shot, you will need to trigger it from out of sight, most cameras can be controlled via a smartphone.