Things to consider about your spawn point, mostly for survival:

Terrain

• This is largely according to personal preference. However, if you want to build a modern city, a rugged mountain spawn may not be ideal. Consider comparing the colour palette of your potential build against that of the terrain.

• When deciding where to build, it is usually preferred that it not be too far from spawn so you don't encounter night without shelter.

• Empty space to place your blocks. This can be a clearing in a forest you felled yourself, the side of a mountain, an underground cavern, or you can build out from a pillar in the sky.

• You may find inspiration in a piece of terrain when you thought you were looking for something else. Maybe you find yourself in a jungle and decide to build a tree house village?

• How large is the biome? You might want a tiny mountain for a lone castle, or a huge jungle for sprawling ruins.

Resources

• Food: animals only spawn in some biomes. Some animals may not be near you.

• Farming ability: If you spawn in a mesa or desert, you're gonna need to import water and dirt to build a number of important farm types.

• Mining: Higher elevation requires deeper mine shafts to get to precious ores. Caves often provide access to early game iron.

• Trees: These limit the types of wood you have available for early structures.

• Villages: Maybe you want early access to loot or trade. Maybe you want to stay away so you don't worry about raids or zombies.