I don’t know what’s the best, because with everything I am so damn picky
But there’s a couple cereals I would buy again, or even have in stock all the time, especially since they can be used for more than just cereal.
My nr. 1 is (cap) cereal 27. I hate to say it, but it’s true. Not only can you use it as cornflakes, but also turn it into frosted flakes, pie crust, granola, Graham cracker, cookie, wafers, chocolate bars use it as depth for specific recipes, texture especially if you want some crunch etc. Extremely versatile after you learned how to work with it, because that can be tricky.
(Cap -sl) fruit circles, not as versatile but for me the “best” fruit pepples not loops on the market currently in comparison to the lemon pledge/warhead vibe I get from other brands.
Edit: forgot to throw in (wf) caramel rice crispy treats. Can also be used in a lot of things outside of cereal. It does have a cinnamon note, that’s quite noticeable, so if somebody doesn’t like that, this might be a no go.
(Flv) cinnamon crunch. Also a flavor that works in many other things besides cereal, that’s how I use i t, because personally as a cereal in not impressed with it much.
(Pur) strawberry marshmallow cereal, sadly only available at nicotine river, but maybe you get the chance to order it somewhere. There’s for me not much strawberry in it, neither marshmallo, I mean you can taste it if you would go look for it lol, but it has a great dry sugar dusted oat flavor, that can be used in a couple things. I mostly just use it for the cereal, reason I threw it in here last, because it’s the less versatile flavor for me.
Hopes that helps a little.