Add a way to notify followers about going live in next X hours, followed by a countdown
Problem: many streamers operate in sporadic irregular schedules, it makes it hard to catch them alive. The notification they just went live might be too late. There is a schedule but in practice it serves only as a hint, especially for streamers that go live very rarely.
As a solution I propose give streamers a way to confirm/set expected stream time anytime in next say 12 hours (exact number up to tweaking). Then give followers notification (either when streamer confirms the stream, or perhaps X hours before the set time). Finally, clearly indicate in UI which of your followed creators are about to go live and when (e.g. just below live streams). There could also be some sort of countdown on the creator's main page.
Apart from solving the above problem with irregular streams, this could also hype the community more in advance and get a higher viewship at the beggining of stream, instead of people grouping up mostly after the stream starts.