Production Design intern

I am a 3rd year graphic design student who is looking to pursue a career in art direction and production design. I am unsure as to where I should intern. Whenever I search, it seems hard to find one.

Also, I still need to build a portfolio centred around production design. Sadly, the design and film department at my college doesn’t offer production courses. Could any one give me some tips and possible production studios that I can check out and tips for building a production design portfolio.

Thanks in advance!