Where do you shop to save on groceries?

Moved here a few months ago and cannot figure out what the besy grocery store is here. I've been spending $150-200/week on groceries for a single person.

I don't eat out and I cook for each meal. I dont buy chips or snacks or prepackaged/processed foods. For produce, unfortunately I prefer to buy organic.

Is there anywhere I can go to save more money?

EDIT: Thank you everyone for your help and recommendations!