Does anyone know any Good correspondence courses that are quick and worth a good amount of points?

I had my correspondence maxed out for SSG when I was a SPC. I did all mine through Skillport. It was painful; there was nothing quick about it. Slow and steady wins the race. In the meantime of searching for your quick and easy, check out Skillport if you haven't already. It also has classes that could help you get civilian certifications, but you will have to put effort into it. https://usarmy.skillport.com

I would recommend online college courses, they are worth the same number of points and benefit way more on the long run

While I applaud the desire, the reason may be misguided. But since you have the drive for education take course related to your field, points will come as a matter of course. Thank you for your service.