Check Audiogon. I have an entry level Nakamichi cassette deck that I bought new in the '90s and it's still going strong.
https://www.audiogon.com/listings?category=analog-tape-decks
If your deck is worth repairing there are still places that will work on them. Could be something as simple as a broken/worn belt.
https://www.google.com/search?q=audio+repair+oregon&rlz=1C1GCEU_enUS821US821&oq=audio+repair+oregon+&aqs=chrome..69i57.15263j0j1&sourceid=chrome&ie=UTF-8