After almost finishing the Captain Alatriste series I want to begin The Three Musketeers series. The first book of the "series" bares it's name but I am not sure about the others. I've read that they are 6, 7, 3, 5. No conclusive answer, reddit truly is my last resort to these type of questions

I am sure this was asked many a times before so I will also ask for book recommendation, I love 17th century historical fiction, and I am wondering if you all have more suggestions so I can get my fix