ST4 introduced context aware autocompletion so you don't need anything else. It's good enough and fast.But if you are a fan of autocomplete that vscode provides then you can use -----
- LSP - https://packagecontrol.io/packages/LSP
- LSP-typescript - https://packagecontrol.io/packges/LSP-typescript
- LSP-HTML - https://packagecontrol.io/packages/LSP-html
- LSP-Css - https://packagecontrol.io/packages/LSP-css
- LSP-Json - https://packagecontrol.io/packages/LSP-json
- LSP-eslint - https://packagecontrol.io/packages/LSP-eslint
If you don't have a powerful machine then I would advice you to not use LSP because it creates a node runtime in the background and that might eat up all your resources. Anyways I feel that ST4 native autosuggestion are good enough. But LSP is much more than an autocomplete engine. So you know, it just depends on your use case.
Personally I prefer using LSP and disabling it's autocomplete suggestions because it takes like 5 seconds for it to suggest something every time I press a key, while ST4 completions are near about instant.
You can also go to Sublime text forum - https://forum.sublimetext.com/ If you have any queries.
SublimeCodeIntel - https://packagecontrol.io/packages/SublimeCodeIntel was last updated 4 years ago. 4 years is like a decade in web development so I doubt you'll get anything good enough from that package.
All Autocomplete - https://packagecontrol.io/packages/All%20Autocomplete was last updated 2 years ago.
Note - Don't forget to set your language on the right side of your status bar. Otherwise auto completion and syntax highlighting will not work properly. For example, if you are writing jsx then select jsx and not javascript, if you are using tsx then select tsx not typescript. That goes for all the other options.
You can send me an email if you need any other assistance - connect@surajmishra.dev
Edit - I just realized this answer does not covers the asked question but I am still going to keep it up in case someone else finds it useful.