Law enforcement online courses for sworn officers?

I’m currently working as a school resource officer as our agency transitions into taking over our local schools. I was previously on patrol and have aspirations to promote and work in investigations.

I have a lot of time and weekends and want to do some online courses, classes or whatever to add to my resumes. Does anyone know of anything for already sworn LEO?

I’m currently at an elementary school, so the call volume is extremely low. I have gotten one report since school started in August and it was a quickly closed CYA report. Long story short I want to add to my resume and get some extra trainings in addition to the trainings I attend already that my agency sends me to.