Therefore, hub cities will likely be easier, but back to first list of risks, you are likely buying in C-D areas.  

For instance, you might be able to take your dollars further in a C/C+ neighborhood that isn't as pretty, but still has strong, consistent appreciation as a result of being tied to an economic hub. 

Aloha @William Kerkau many local Hawaii investors collaborate through an REI online hub. 

The ceiling in the bathroom was full of meth residue and there was smoking and cooking paraphernalia and sex toys and porn mags all over the house. 

Hubs and I were house shopping 2016-2018.

Delivered Tenant free.7 min walk/2 min drive to major public transportation hub. 2 min drive to local highway. 6 min drive to interstate.

Located in the countryside, this home is your perfect hub to escape the busyness of city life. https://www.airbnb.com/rooms/49893729?

I chose this as a hub because of the proximity to other metros (DFW, Little Rock, Tulsa, Springfield, KC), is this a decent place to start?

I would recommend the properties be in separate LLCs flowing through a hub as you have referenced or separate childs series of a series LLC (or DST) to minimize liability.

Since you're just starting out I definitely recommend the Bigger Pockets Ultimate Beginners Guide which does discuss wholesaling, and there's a wholesaling "hub" part of the BP website too.Other than that, please let us know if you have specific questions about wholesaling.While it's far from my main activity, I have wholesaled many properties over the years and would be happy to help answer any questions, but definitely check out those BP resources and others you can find on this site; there are a lot of resources for new wholesalers on BP since it's one of the more common strategies beginners start out with.