Lemmy (https://join-lemmy.org/) is a federated alternative to Reddit that forms part of the Fediverse. What this means is that any person can host their own instance and have complete control and ownership over the content, and still be able to interact with other instances through the use of federation.
In this tutorial I walk you through the basic steps of setting up your own lemmy instance in the cloud. There are additional steps that you should take to ensure that your server is protected such as disabling ssh login using a password and setting up a firewall. These steps are not explored in this tutorial, so please do some extra research on how to keep your server secure.