- https://www.wholefoodsmarket.com/product/painterland-sisters...
- https://www.hy-vee.com/aisles-online/p/2284457/Siggis-4-Milk...
- https://www.jewelosco.com/shop/search-results.html?q=yogurt&...
- https://www.marianos.com/p/dannon-gluten-free-whole-milk-non...
As for roasting beans, that is an immensely deep rabbit hole that will #1- not give you better results than specialty roasters and #2- cost you much more than specialty roasters. Not to mention you will have a tough time getting high quality beans unroasted.
Edit: also all of these grocery stores I listed I can guarantee have fresh bread made daily to buy. Not "white bread", but "real" "European" bread.