Recently, I stumbled upon a link to try Monarch online free for 30 days. I also entered in the giveaway they are having. I set it up for all three of my Musketeers to try during Christmas break. Athos has used it a few times and really seems to like it. Even the math. This is fantastic! I have tried so many avenues for him this year, trying to find one he would like that worked for him. Porthos is using Teaching Textbooks, and really likes it. He has been doing so well with it. Better than I have ever seen with him. Aramis has been using Life of Fred, with a supplement of Easy Peasy All-in-one homeschool.
Where Porthos likes the animation, interaction, and instant recognition of TT, Athos prefers the text book style and no-frills approach. Monarch through Alpha Omega Publications offers that. Plus, it's online and grades as he goes. Monarch also offers language arts, science, bible, and history/geography.