Mine clay balls from clay blocks found in rivers, lakes, and beaches
Smelt clay balls in a furnace, blast furnace, or smoker to get bricks
Craft 4 bricks into a brick block in the crafting grid
Find brick blocks in villages, strongholds, and some other structures
Mine brick blocks with any pickaxe to collect them
Trade with mason villagers for brick-related items
Use commands in Creative mode to give yourself bricks or brick blocks