Selecting Best Backgrounds for video calls

What are the best choices for backgrounds I can purchase here for video calls, group calls from Kaiser. I.ve had back issues the last year and once I get the Green Screen through Video Pad or OBS I would like to use it for backgrounds as well as music videos I have and want to add to YouTube. Can anyone help me as far as which items to purchase to use as static and virtual background? I don’t know enough as to use 3d images, 3d photos, virtual reality. At first I am looking to have a background that looks like my house isn’t a total mess (which it is). Please Help or Advise.
Thank You!