I would really focus on improving his writing skills and social-emotional maturity so that in a couple of years, he can take advantage of option #1 and/or #2 if he is so inclined. There is no reason he cannot pursue option #1 and/or option #2 in tandem with option #3 and option #4. Both DS and DD have been admitted to our local Community College and enrolled in their first course this summer and am preparing for option #1 along with option #4. They could have started with option #1 one year earlier as in our state the requirement is completion of 7th grade although individual universities can raise the bar as they see fit.