I made some MCD bosses in Lego form. If you want a boss made or a dungeons set in general then suggest some in the comments. : r/MinecraftDungeons
New LEGO Minecraft sets are available now
The Wither 21126 | Minecraft® | Buy online at the Official LEGO® Shop US
Amazon.com: LEGO Minecraft The End Battle 21151 Ender Dragon Building Kit Includes Dragon Slayer and Enderman Toy Figures for Dragon Fighting Adventures (222 Pieces) : Toys & Games