Many FaceBook users have thanked me for mentioning the largest independent English-speaking Alexa support group, where you can can get ideas and benefit from the combined experience of 35,000+ members: UK Alexa Help & Support - www.facebook.com/groups/alexafansuk
You can ask questions, but video support is "coming soon" (13 Nov 2019).
According to https://www.nanit.com/products/nanit-plus
Does Nanit work with Alexa?
Yes! Our Alexa integration allows you to ask Alexa how your baby slept, what time they woke up, or even how many times you took them out of the crib last night. Video support for Echo Show is coming soon.