So sorry Cody!!
Sub-directories allow you to consolidate domain authority and often provide ease of maintenance. With the proper markup, you can create a clear signal to Google for the geotargeting. I understand this isn't an option for you.
With subdomains, you lose some of the shared domain authority that gives sub-directories their advantage, and generally have to maintain separate installs, etc.. You can specify a geo within search console, but it won't be as effective as a ccTLD.
With ccTLDs, you can create a much quicker signal for geotargeting your traffic, but the domain authority for each site is generally wholly independent and will require more substantive effort to build the initial authority of each ccTLD, etc.. ccTLDs tend to earn better CTR from the SERPs in the geo, as they seem more likely to be relevant.
In your case, I would go with the ccTLDs..
-Jake