Noted faith formation specialist John Roberto curates the Lifelong Faith website you can find here. This is a kind of one-stop shop with resources gathered from all around the world to enable parishes and other communities to take faith formation seriously.
I'd recommend a wander around the site but first sign up for the newsletter so that you can be regularly reminded of new material appearing at the site.
You can receive the wonderful Lifelong Faith journal for free which is a pretty good deal!
I recognise John's approach to faith formation as foundational. Have a look and see what you think...