Trying to make a good longitude / latitude grid that makes my map look something like a page in an atlas, I've seen a few here do it before.

However, I don't know how to hand make anything besides a regular square grid. Creating a sphere in Blender and texturing it to do it that way seems like way too much effort for little reward, and the closest thing I can find to the grid I need on Google is large pictures of wireframed spheres, but none are large enough for my map.

So how do I make a curved grid?