I'm the wrong guy to ask, I kinda dislike IDEs. I use vscode sometimes, exactly for the code completion and integrated documentation you mentioned. But I often

I'm the wrong guy to ask, I kinda dislike IDEs. I use vscode sometimes, exactly for the code completion and integrated documentation you mentioned. But I often use vim for the lack of that. Every helper can also be a distraction, every functionality is an interface you have to learn. Right now, I only have formatters (which also work as syntax checkers).