Welcome Caitlin! I was in your shoes three yeras ago. We just could not find a shelter or rescue job, by the time I would hurry down to the shelter, the corgi would already be gone. After I got Sidney I discovered that we had a local corgi meetup group, where people could post messages about a corgi being available to adopt. Maybe there is something like this in your area.

Also, I hope some of the more knowledgeable folks on this site will post on how to find a reputable breeder in your area. Best of luck to you!