Hey Godfrey, I think others will have better direct responses to your very practical question but Horn and Staker's Blended is certainly a good foundational resource to have close by.
But if you are going down the blended learning rabbit hole, I would take Neil Selwyn's Distrusting Educational Technology with you. As a technologist, he is certainly not anti-edtech, but he helps us to embrace edtech with critical eyes open. Highly recommended.
Hi - We pulled together a collection of really specific blended and personalized learning strategies on our website, along with in-depth profiles of schools across the country that are blending. All of the content is free for you to use and share. Hope you find it helpful! - Kira<https://practices.learningaccelerator.org/