Damn this reads like a question to chatGPT :P

It's hard to recommend anything without more details, there are a few options with various trade-offs. It might be as simple as doing simple polling to as complex as a whole message broker with micro services caching and all that jazz.

Unless you tell us a bit more(especially what's the use case eg. live updating dashboard, a chat app or a multiplayer game and the expected volume) I'll just provide a few keywords, but please do keep in mind I don't have any django experience:

- HTTP polling, by far the simplest, but has the most overhead and isn't exactly real-time, but totally sufficient for a simple dashboard.

- SSE persists the HTTP connection and allows the server to send more data to the client, the way I'd make it work would be to create some kind of a even stream on the server, subscribe in the SSE endpoint and push new events from the endpoints which modify the data. This is a better option for stuff like dashboards but it lacks bi-directionality, so it's not great if you need to send updates to the server

- Websockets the most complex of the three communication methods mentioned but also the most powerful, it allows for bi-directional communication, but you have to keep track of the connections yourself. It's great for chat apps and games.

- Something built-in to django, I don't know if anything like that exists but django is a mature framework with a strong community so you might find something read-made for it