Now this doesn't really need a huge write up but I'll just link you to a Gist that'll give you the whole settings.json.

Changed my mind,
I'm gonna link a few things that I'm using anyways.

Theme

I switch between these 2 themes

Material Theme

Ayu Theme

Font

It's a custom Ubuntu Mono font with Ligatures added, You can find it at lemeb/a-better-ligaturizer, or customize any of your own fonts to use ligatures as well

Fira Code Mono is another one that I like.

Plugins

Music Time - Control Spotify with your code editor

PolaCode - For Epic Code screenshots

And that's about it, I do have other language specific plugins but I don't think I need them posted here.