This is a great website created by the Humanist Society of Scotland to understand Humanist views on things.
https://www.humanism.scot/what-we-do/education/education-resources/
It includes
What is Humanism?
Bioethics
The Origin of Religion
Humanist Responses to Various Moral Issues –
Great for assignments or assessments where you need a non religious viewpoint!
https://www.humanism.scot/what-we-do/previous-campaigns/the-h-factor/
Responses to Origins of the Universe and Life
This is a good website to get viewpoints from to add into any pieces of work in RME. For teachers there are examples of lesson plans etc!