How does one settle on a feature icon style? [migrated]

This question may be vague, so let me know if I need to provide details, but I'm mainly looking for some direction.

I'm currently working on designing feature icons for my companies dashboard. I have never done much extensive work on icons before and while exploring different styles, I am overwhelmed with the number of directions I can take this in. I was wondering if anyone has any advice on how to narrow the style of icons we should have to represent our company or even how they approach icon design. Just to clarify, this isn't for simple icons like copy, save, edit etc - it's more complex ones that represent concepts. So all in all, essentially how does one approach styling the iconography of a product?

Thank you very much!