Can I still get interviews if I don't know all the crazy languages?
Absolutely! Everybody's tech stack is different, no reasonable hiring manager is going to hold out for someone who just happens to know every piece of their stack already because that person doesn't exist. They're going to hire someone who knows the piece that's most important to them and let them learn the rest on the job. I've never used the exact same stack at two different jobs (most of them have been fairly similar but none exactly the same), so I've never started a job already knowing their exact tech.
At my current job, all I knew coming in was the core language we use on the backend, which is Java. I had never used the particular framework we use, I had never touched Mongo before, I had never used AWS for anything, and I had never even used git before. But I had a lot of experience with java and with development in general, which gave my now boss confidence I'd be able to learn the rest of our stack.
Now finding a job here is difficult because companies require so many unorthodox tools.
Whether you know this for a fact or whether you're assuming it based on your research, the way around it is networking. Go to local meetups for backend devs (if there aren't any in your city, starting one would look great on a resume), make a token effort to be friendly (offer to help tidy up and the organizers will love you), and you will meet people who either are hiring managers or who can introduce you to them.