I use MEP with my older two because it's an excellent program with plenty of solid problem-solving and it's FREE. It's not immediately obvious that it's quite hands-on - you need to use the lesson plans to get that benefit, which takes time to get a flow that works in your home because the plans are designed for classrooms. For me, that had been worth it because I really love FREE
There's a really supportive FB group ('The MEP Group') and the blog posts linked in their pinned posts are very helpful.
I also have to give a plug for Gattegno.
You don't get any more hands-on than this. But it's quite a learning curve for the parent. Personally, I'm having a ball
You can use Task Cards from Play, Discover, Learn to make it more open-and-go, and the blog posts there and at Arithmophobianomore help me to see what I'm supposed to be doing. The Arithmophobianomore lady used to do free online trainings for parents but I'm not sure if she is at the moment. I think if you join their forum you can get access to the recordings.