Looking for a Program

We are doing the Good and the Beautiful as homeschool program with my kids. However, they only have math up to 6 level, and Krystal will need the 7th level or grade which means now I've been looking for a new program for her. I have only worked with TGTB so far for everything and I don't know how it is to do something for LA and something else for Math and so I'm still not convinced of what to do. I'm new at homeschooling so I have not much knowledge about other programs/curriculums but the ones I'm finding are not very convincing.

I have found an online program called Discovery 12... sounds good but I'm not sure if I want my child to do all online. Also IXL is one that I've heard is good but all online. I will give both of them a try for a few days maybe a week and see if I want to follow that for everything or just Math class.

I love TGTB because is in a book, easy to follow. my kids like it and used to it. But I really  hope the next one will be something that will help Krystal keep going and enjoy Math. 

For Liam and Eliza who already moved to a new level. I think they love TGTB too and I am sure by when Liam will need level 7  it will be released so he won't be having this change in curriculum.