Need help with Chemical Engineering OJT/Immersion in Japan (already have long-term visa)

Hi!

I’m a Chemical Engineering student from the Philippines, and I’m planning to do my OJT/immersion in Japan this April. The thing is, I already have a long-term visa, but I’m honestly not sure where or how to apply for an OJT position.

Also, I don’t know how to speak Japanese (yet), so I’m a bit worried about language barriers. Has anyone here done an OJT/immersion in Japan or know of companies that take international students? Any advice or tips on where to start would be super helpful!

Thanks in advance!