Raids are generally used to introduce one or more audiences to other streamers.

Right now, there is one method of raiding: You click the raid channel button, you're brought up a list of live channels you are following.

I believe that the creator should be given a list of all live channels in the category they are streaming. That way they can pick a live channel that they may not be following. Introducing an element of RNG into raiding could greatly open up the platform to a wider audience.