Rather than looking for one YouTube channel, I would search "learning adverb phases" and watch videos from the search results. I doubt there is an English channel that only focuses on adverbs, but there are many English channels that have made videos about adverbs.

https://www.youtube.com/watch?v=MHKa48BWbPw try this

For phrasal verbs, try this: https://m.youtube.com/watch?v=MHKa48BWbPw&pp=ygUgcGhyYXNhbCB2ZXJicyBpbiBlbmdsaXNoIGdyYW1tYXI%3D