I’m not sure how many veterans we have in here, but I know the VA is dogshit about getting good information out there. They have a newish program called VetTec, which gives you free training for many common and sought after certifications as well as just general courses. You just need at least one day of GI Bill benefits remaining to be eligible. They can be taken in person or online for many.
Certifications range form basic entry level like CompTIA to intermediate certs such as Cisco CCNA to advanced certifications such as Cisco CCNP and ISC2 CISSP.