Nik Peachey previews ReadTheWords.com (beta) online text-to-speech converter, prior to suggesting ways for EAL learners to use it for help "with their listening, reading and pronunciation" (¶2)
Plenty of mind-numbing background music, but still worth checking further to see whether these "animated teaching videos for ESL and EFL learners" (About Us, ¶1, 2017.02.24 [JST]) might be suited to particular learners' needs
You could get in touch with someone for your class to interview. Just have one
computer plus camera set up in class, and a visiting expert, friend or colleague
on the other end for your students to interview. They could also interview an
expert in groups