Do you want to create your own Fediverse instances?
By far the easiest way is to use a managed hosting service such as:
The hosting service does the tech stuff, but you own and run the instance.
DO IT ALL YOURSELF
Alternatively, you can do all the tech stuff yourself. This requires a lot more skill, but it gives you a lot more flexibility with choosing software.
Halfway between these two extremes is @yunohost, server software which lets you install your own online services extremely easily:
Once Yunohost is installed on a server, you can add and remove services yourself through a graphical interface.
Fediverse services include:
There are also many, many other services: