Tamron 70-300 vs Sony 70-300 for Sony a6400?

I can’t decide between the Tamron and Sony 70-300 because of the pros and cons of both lenses. The Sony has image stabilization and that is useful for my Sony a6400 since it doesn’t have ibis and has more controls on the lens it’s self but the Tamron is so much cheaper so I can’t decide between the two. I could buy a used Sony 70-300 but is it worth it? And please let me know if there are any other telephoto lenses you would recommend.