Flower forest seed, right next to spawn, includes this cool mountain overhang thing and is also right next to a dark oak forest ( -6848423353989275121 ) : r/minecraftseeds
Minecraft Flower Forest Seeds - Minecraft Seed HQ
Flower Forest Seed for Minecraft Bedrock 1.15/1.16
Big Flower Forest seed for Minecraft 1.16.4/1.16.3/1.16.2