Sorry for the late reply. I’m a ‘22 grad who just got picked up by an ANG Viper squadron. I’m in the process of transferring from the Navy Reserve to the ANG.
The best resource for the ANG/ AFR hiring process is Bogidope.com. It has a job board of all the hiring squadrons and interview/ application prep articles. You apply to the hiring squadrons directly for a UPT slot. Many allow you to ‘rush’ before the interview. Note that some squadrons don’t advertise their UPT boards so I also recommend cold calling units you’re particularly interested in.
I got my application packet ready on my own. I did my AFOQT and TBAS at an AF base. Most also require letters of recommendation.
Getting a slot was one of the hardest things I’ve done. Even with a PPL and great scores, it took me 2 years to get hired, rushing 6 squadrons. Before turning down AD AF or Navy, be honest with yourself and what you can offer the squadrons. I regretted turning down Navy flight until I finally got hired.