Ways to get to VEX IQ worlds

VEX IQ Competition Discussion VIQC Squared Away (2019-2020 Game)
#1

Hi
I’m Just trying to find out all the ways to get to worlds for Vex IQ squared away.
I know about signature events and I know that nationals offer spaces to VEX IQ - Are there any other ways ton get to worlds?

#2
#3

Please use the forum search before posting.

(This particular post is referring to VRC, but most of the general criteria remains the same)