For my white background photos, my friends and i stood in front of a white background and set the exposure to high to avoid creating shadows. Then I put the image into adobe photoshop and tweak the image’s light settings with the “curves” button. I learned that standing closer to the background made more shadows, and didn’t work; standing father away made the shadows disappear.
More photos at: https://drive.google.com/drive/folders/1Zm1__jnBdBTpfnVlCYPPcBvV9rqfQtJk