Here are some cereal brands along with a few popular flavors they offer:

1. Kellogg’s:
   • Frosted Flakes
   • Froot Loops
   • Special K
   • Rice Krispies
   • Corn Pops
2. General Mills:
   • Cheerios (Original, Honey Nut, MultiGrain)
   • Lucky Charms
   • Cinnamon Toast Crunch
   • Cocoa Puffs
   • Trix
3. Post:
   • Honey Bunches of Oats
   • Fruity Pebbles
   • Grape-Nuts
   • Raisin Bran
   • Shredded Wheat
4. Quaker Oats:
   • Cap’n Crunch
   • Life Cereal
   • Quaker Oatmeal Squares
   • Quisp
5. Nature’s Path:
   • Organic Flax Plus Multibran Flakes
   • Heritage Flakes
   • EnviroKidz Leapin’ Lemurs (for kids)
   • Mesa Sunrise
6. Kashi:
   • GoLean Crunch
   • Heart to Heart
   • Cinnamon Harvest
   • Honey Almond Flax
7. Malt-O-Meal:
   • Marshmallow Mateys
   • Golden Puffs
   • Cocoa Dyno-Bites
   • Tootie Fruities
8. Barbara’s Bakery:
   • Puffins (Original, Peanut Butter, Cinnamon)
   • Honest O’s (Honey Nut, Multigrain)
   • Shredded Wheat
9. Annie’s Homegrown:
   • Organic Frosted Oat Flakes
   • Berry Bunnies
   • Cocoa Bunnies
10. Post:
    • Honeycomb
    • Golden Crisp
    • Alpha-Bits

Remember that cereal flavors and availability might vary based on region and changes made by manufacturers over time.