I've had good luck so far with Vim + You Complete Me [1] (which uses a Racer background). Check the GIF in its repo, but it gets you code completion boxes in V

I've had good luck so far with Vim + You Complete Me [1] (which uses a Racer background). Check the GIF in its repo, but it gets you code completion boxes in Vim that pop up automatically in which you can tab through for the next results. It's very ergonomic compared to Vim's awkward built-in completion shortcuts, and gives you completion intelligence that's trending towards something like Visual Studio + C#. [1] https://github.com/Valloric/YouCompleteMe https://github.com/Valloric/YouCompleteMe