Does anyone know where I can get copies of the Tanakh in languages other than English?
A good Jewish bookstore usually has at least some in whatever the major languages spoken by non-Anglophone Jews in the local environs are. For example, I know at the store I like to go to here in Los Angeles, you can always find them in Spanish, Russian, and Farsi, and occasionally a couple of other languages, too.
Academic booksellers usually have one or two rather expensive critical editions that are multilingual in the scholarly languages: I know it's not too much of a chore to find a side-by-side Hebrew/Aramaic/Latin/Greek.
But if you're looking for other languages, I'm not sure. I know some are around: I've seen Hebrew/French and Hebrew/German editions before, and I assume others are to be found.
If you're in a pinch, and you just need to look something up ASAP, and you're willing to take what you can get in the language that you need, try
unbound.biola.edu, which is free, and has many language options, and offers up to four parallel translations simultaneously. I tend to use it a lot for Hebrew/Greek/Latin/English, and it serves its purpose well, though of course I already am familiar with the various risks and pitfalls of those translations. As long as you remember that you usually get what you pay for, it's a very helpful site.