Raid roulette button
Raid Roulette. Streamers can opt in. Maybe even set certain things like only PG or close to hitting 500 followers etc.
Streamers who end their own stream can then use Raid Roulette to raid a completely random person that fits the streamers wishes (based on the earlier mentioned things other streamers can set)
This would make it more random who gets raided, gives streamers a better chance to get raided and is overall fun.