I found this little stand (https://amzn.to/3k1TlDX) on amazon for less than 20 bucks. It has pads that absord sound pretty good, not perfect ubt it works. i use a mousepad under it to make for any additional noise that i might make. It works well with or without the mousepad. It would have been really nice if they incorpreted a folding stand into the design. Anyway, i hope this helps you out.
Check out the Home Studio Trainer page on Facebook. I posted a message on that page and hopefully they will respond to this post.