I like to buy black or blue mussels! These mussels are slightly smaller and more tender than green mussels. Green mussels can be slightly chewier and are sometimes harder to find and more expensive. Black mussels are mild in flavor, tender, and easy to find! Perfect for those just trying out mussels. Blue mussels are small and also easy to find, but they have an intense flavor that’s perfect for seafood lovers.