RIQ/RFC is at Randolph, but I digress, semantics.
I don't know your personal situation, if you're coming from another AFSC or if you're brand new, so:
Brand new accession: You will PCS to Randolph, and be expected to find an apartment or house off base. You will receive BAH for the San Antonio area, so yes family is welcome.
Cross-training: You will be TDY to Randolph, so it is better to leave your family at your home station. You will be living in on-base lodging.
At Holloman, you are TDY en route, so your family is kind of in limbo. You can either leave them in San Antonio (or your previous home station), or take them with you, but they will have to live in a hotel-size room with you on base unless you have a cat or dog and can secure a pet-friendly TLF. This is not much better, but it has a full kitchen and a separate living room from the bedroom. It's a pretty terrible situation for possibly four to five months if you get MQ-9's. I've seen some people forgo lodging on base and find a fully-furnished apartment off base, but I'm not too knowledgeable about that stuff in Alamogordo.
There were plenty of people that sent their families ahead to their gaining base, but you run the risk of washing out of training at Holloman, and then being stuck with a home at a location you are no longer going to and having to go through the pains of convincing the military to repack your things after you've unloaded already. I strongly advise against sending family ahead. Though failing out seems like a remote chance, it's happened and can cause even more heartache and headache on top of having to get reclassed again.