I'm looking for a good guide/introduction to the Cut Page preferable also the Speed Editor.
All guides/introductions seems to focus on the Edit Page while leaving the Cut Page as something of a haunted house. People are even joking about it on YouTube.
The first day of Black Magic's training class Beginner's Guide to DaVinci Resolve was about the Cut Page.
All the Black Magic classes I have taken have been uniformly excellent. The sessions are not recorded however, so you will have to catch them as they become available.