Cheapest Straigherline partner?

[justlearning123]

Have you looked at the Big 3 and WGU. I believe all four of them are partners with Straighterline...
They would be the cheapest of the ones listed on the page. Online Courses, Online Classes for College Credit | StraighterLine

Update: Curiosity got the best of me, I skimmed down that list and Patten is a partner!
They're the cheapest option, but it maybe better to go with the Big 3 or WGU.

I actually went to WGU briefly, but I was too much of a perfectionist on the tests. It was taking me 3x longer to take the tests, and I was going to graduate in 12 years. Then I went to NAU PL briefly, but was overwhelmed with the number of essays I had to write (where I was also a perfectionist). I felt like, maybe I should take as many classes as I could at SL, then transfer to the cheapest school possible to finish the degree. I want to work at my own pace, but have a mixture of tests and essays (like a regular school). Or maybe I should just try to make something I can sell, instead of trying to improve the product of me.