You’re not going to get anywhere real with courses / certifications. Project Management is a job, not a career. The way up from where you are is into middle management, perhaps in an assistant director role, or manager without the ‘project’ attached to it. As with any management position, what your company needs from you isn’t facility with working with processes or technologies or practices, it’s facility with working with people. Learning those was good for getting you a job in project management, but it won’t necessarily be good for helping you move up.
So get to know your bosses because they hold the keys to your future.
Of course, if you want a job where performance is indicative of things you do and know, then you need to become one of those programmers that you manage.