VSCode is my favourite code editor, and here are some extensions I use daily and worked very well for my needs.
Focus is on Web Development with JavaScript, TailwindCSS, node.js + npm, some personal templating choices and Material skin.
Theme
I think you need to be comfortable with your editor, these are the themes I use
Dark+ Material
Material Icon theme
Intellisense
IntelliSense is a general term for various code editing features including: code completion, parameter info, quick info, and member lists
I mostly use Intellisense to get code completion. It saves me a ton of time and lets me get things done.
Path intellisense
npm intellisense
TailwindCSS intellisense
Development
Here are other extensions I use to do the things I need to do: e.g. editor markdown, getting syntax highlight for nunjucks templates and JavaScript linting.
Nunjucks
StandardJS
Markdown All In One