There are many different types of Fediverse software, which do different things. This page is for those who are interested in setting up a community, but don't want to deal with the technical details of doing so (so-called 'managed hosting').
If you just want to join an instance running Fediverse software, take a look at fediverse.to which lists many, many instances of all types. This page exists due to edits being reversed on a joinfediverse.wiki page being reverted.
*Fediverse Express automatically sets up Misskey and allows for easier updating. However, if something goes wrong, you're on your own. You also have to trust the pseudo-anonymous person behind the site. Included here as it's currently the only option for easily deploying Misskey.