There are some GREAT ideas in this blog, and there are many suggestions that I would not have thought of. Here’s one:
Listen to a short clip of someone speaking. Play it again and again. After listening a few times, try to repeat what the speaker is saying immediately after they say it. Keep practicing until you’re saying the same thing at the same time.
How this can help:
Shadowing is a great way to practice not only your pronunciation, but also your rhythm and speed.