Is there a list of instance types by region somewhere?

I’m doing dev on an A100 in Virginia, but I want to be able to switch to an H100 or 8xH100, or even a cluster of B200s eventually.

I’m trying to figure out the best region for locating my Filesystem instance, because it looks like I can only access A100s in the Virginia regional system, which is just geographically closest to me.

Which is the most versatile region? Which region has all the toys?