I realize all the rage is to shop at Whole Foods for people that are "health conscious" but it's not necessary. I guess Trader Joe's is similar (I don't really know but often hear them discussed in pairs). I've been on plant strong diet for a few years now and have never stepped foot in either one. Not that I have anything against them it's just that where I live we don't have them.
I live in the midwest and the best supermarket (in my opinion) is Meijer. Great produce and pretty much anything I want can be bought there. We have a small health food store where I purchase nutritional yeast flakes and chick pea flour but those were rare instances.
People that migrate from a carnivorous / omnivorous diet to a herbivore diet often make things way to complicated and give up before they even get started. Don't be a quitter. Press through!