This is becoming popular across many churches, although there is not as yet much posted on the internet. You could start by searching YouTube for “Lego Bible”. The children and youth team in the Wirral Circuit are amongst those supporting churches in developing Lego Church.
Email them here: circuitmanager@wirralmethodist.org.uk
You might find this article from Virginia Theological Seminary in the US interesting and thought-provoking: https://buildfaith.org/building-faith-brick-by-brick/