Path Intellisense - VSCode has a very good auto import capability, but sometime you still need to import some files manually, and this extension helps a lot in these cases.
TypeScript Hero - Favorite feature for Angular projects: sorts and organizes your imports according to convention and removes imports that are unused (Ctrl+Alt+o on Win/Linux or Ctrl+Opt+o on MacOS).
TSLint - linter for the TypeScript language, help fixing error in TS code.
File Utils - A convenient way of creating, duplicating, moving, renaming and deleting files and directories.
Workbench
EditorConfig for VS Code - EditorConfig Support for Visual Studio Code (must have plugin for VSCode)
Visual
Bracket Pair Colorizer - This extension allows matching brackets to be identified with colours. Great when you have nested brackets. I usually keep this extension disabled and only enable it when needed.
Better Comments - Improve your code commenting by annotating with alert, informational, TODOs, and more!