Well, as an event team member I would say a fairly easy event to host is waterdrop :>
The only thing that would need to be added into the survival server would be something like /claim kick or /clkick. This is required because there are certain rules that one has to follow or else they get kicked from the event.
I would say that waterdrop is quite fun, it would definitely be cool to see it in survival sometime
If you need an explanation of water drop, here’s @Atterax 's explanation from his list of kitpvp’s events: