One of the best resources available (In Our Opinion) is through Military One Source. They have a specific section called the Spouse Education & Career Opportunities, or (MySECO) that covers an array of topics from resume building and career paths to pursuing an education! Click HERE, or the picture above and create your account. Quite a few external programs from other sites/agencies will direct you to the MySECO platform!
The folks over at Military-Transition.Org have invested an incredible amount of time gathering resources for transitioning service members, veterans, and military spouses! We would highly recommend checking their site out HERE.