+1 on the standard lib. It's done so nicely in most places, that it's easy to convince myself to take a minute and read implementations of routines I'm reading godocs for, even though the docs are 100% clear... cuz it's actually a pleasant read.
In contrast, I've worked in places where I needed a drink or 3 before I can build up the gumption to open my text editor :-)
This would have been my suggestion. Read the standard library. It's mostly easy to understand and well documented. In general if you have a question of how a problem should be solved, this is a good place to refer.
