You may want to keep an eye on https://microsoft.github.io/language-server-protocol https://microsoft.github.io/language-server-protocol and https://github.com/

You may want to keep an eye on https://microsoft.github.io/language-server-protocol https://microsoft.github.io/language-server-protocol and https://github.com/w0rp/ale https://github.com/w0rp/ale. Any editor that supports it will have very very high quality auto complete and other IDE-like benefits like jumping to definitions. It's still in its early stages but it's shaping up to be a game changer if you want those features.