Ask HN: How to get better at spoken English?

This is somewhat anecdotal, but the immigrants I know who have made the most successful linguistic transition to America did so by watching a ton of American media: watching TV + movies and listening to music. See how English-speaking people speak and practice imitating them. Practice imitating some of the most well-known movie quotes. And try and talk to people if you can.

Offhand, it might sound dumb and a little dated now, but a show that I think shows off a lot of interesting speech patterns to check out is Buffy the Vampire Slayer: there all kinds of English-speaking accents and very interesting colloquial style speech patterns there.

You should do lots of listening to get your pronunciation right. Listen to news, podcast etc. Also when you are reading something, read it aloud, that way you get to hear the words and how you are pronouncing it. Read aloud and active listening are very important techniques. With these two things you will be able to improve your pronunciation drastically.