Structure blocks are one of the few things in Minecraft that do not generate naturally but can be obtained using commands. The command for getting a structure block is "/give @p structure_block 1".

Used in cohesion with the structure block, the structure void is an invisible Minecraft block that prevents blocks from being overridden when a structure block manually generates a structure.

You can make bricks in Minecraft by smelting clay balls in a furnace, but you'll need to craft those bricks together to build with them.

The Crafter block coming to Minecraft in 1.21 will be a major shake-up for the game, warranting a new structure to go with it.