The Sketch plugin Runner allows you to find anything in your Sketch app, and shows what plugins are available to install for the related searches you make. It has a simple UI for accessing all you need, which makes it a powerful ally in your dream list of plugins.
This is possibly the first plugin to install (as then you can search for the rest you need easily, and installs them right from within Runner.
I use Runner when I’m looking for something different, and keeping track of what might be new for Sketch.
Typically used for loading out your Sketch to turn it into a monster of a design tool.
It’s a paid plugin, but only $20