“First to Read” function?

Hii There,

I’m writing quite a bit of blog posts lately, and I wondered about a little feature:

I want a few of my most loyal followers (ones that I manually designate) to be able to read a post in advance.
So for example:

I write a post -> I publish it -> the special people can read it -> 2 days later it automagically is available for everybody

How can I achieve this? I know I can just do it manually and stuff, but having it automated for me is just a lot nicer.
It would be nice to have a little toggle so that I can either immediately publish it (if it’s something very important or so), or have it for my special guest firsts (in a case of a review for example).

This could also be nice for some sites to have their “premium” members get access to content first ??

Cheers