In Internet Explorer days, you will go to Internet Option, and type in all web pages you want to be opened as home page whenever the browser opens in General tab. You can do the same in Microsoft Edge on Windows 10 too but just in a slightly different way.
Click the ellipsis symbol at the top right corner to open the drop-down menu, and click Settings.
Select “A specific page or pages” in Open with, and click Custom.
Then start typing in web page address into the box, and click + sign to add to the home page list.
I entered Edge Talk, Google, and the default start page as my home pages. This is what looks like every time when I open Microsoft Edge. If you need to re-arrange the order of the open tabs, simply drag and drop them into the right position.