Bumping in case I've put this in the right section.
Looking at RunItOnce, seems pretty good at 25 bucks. Am I missing out on essential solver tools here though?
They have a decent course called "From the ground up (cash)" by Peter Clarke which will give you solid fundamentals. It's only $49 and it includes 1 month of their cheaper membership plan. There is no solver study at all in the course however.
Peter Clarke now has his own training site and course which explains GTO theory and how to deviate from it to exploit the population's tendencies. It's called Carrot poker school and I believe they have a sale atm. Check out their free videos on YouTube to see if you like the style maybe? GL