Here's one idea, expert advice platform in exchange for streaming sats. A platform where you can chat or book calls with experts for their opinion/consultations on specific topics (think lawyers, engineers, doctors, etc.) in exchange for sats. (fixed or variable amount of sats per unit of time).

There should be as well a reputation / vouching mechanism with some sats redistributed for those who vouched for / referred the expert.

And here's another idea coming from my hate of voice messages. Imagine if you can paywall voice messages on messaging apps with sats whereby the sender would incentivize the receiver to hear an audio message by streaming sats to them OR the receiver can set a sats rate per seconds for audio messages received.

That way, people would be incentivized to send succinct and essential voice messages and no time would be wasted hearing 5 mins of audio that can be summarized in 3 bullet points.

Telegarm has an option for premium users whereby you can opt out of receiving audio messages. It would be nice to take that one step further and paywall it.