This is what used back in the day: github.com/johnpapa/angular-styleguide/blob/maste…

Basically there at least three approaches and you cannot figure out which will be your favorite before try them(it's a pity). But, I think one of the best is ToddMotto's style guide. Another favorite is Mot Cowley's angular folder structure.

And do not forget that Angular team has it's own style guide.

For me, the separate component, view, guard, directives, pipes approach is the best.