Thanks everyone!

I am looking into my states laws (KY). I know we can homeschool but don't know much beyond that. I would like to have lesson plans together that are flexible, Montessori and blended learning (being both online and traditional).

From my understanding in 1st grade here the focus is language arts, writing and math. Everything else comes in 2nd grade or above. I looked over the common core curriculum guide for her grade and those subjects were the only ones in the guide.

My idea is to cover more subject areas as she is very interested in science and animals with a little bit of history. Language is her biggest strength from what we can see. After going to the teacher store and looking through workbooks she is definitely at minimum 2nd grade possibly early 3rd. Math she needs to be taught some things but I'm positive once shown she will quickly move through.
I want programs/workbooks she can move at her own pace if she goes through grade 2 stuff very quickly.

I also need advice on how to see where she is at. Some I can look at the workbook and see it's too easy.

I looked at Singapore and MCT. I think she might be ready for MCT but Singapore I didn't see anything below 2nd grade.

Do you all do workbooks and online programs? Where do you get ideas for curriculum? I have looked at some stuff but it is very overwhelming as there is so much. I don't really know where to start.