In terms of what creators want, in one example, where they'd accept recuring donations, they'd most likely want to see each individual subscription they have / by whole (npub and/or LN address) to say thanks to / include them in credits in a post or video.

In another example, where a creator wants the same as above, to also know what package they've subscribed to, so that they'd know what to provide them with what value/benefit (ex: have a conversation with them, or sending them a specific file, etc)

A third / more advanced example, for service-like behavior (this would be me in this case), would be similar to the above, where the npub data is auto extract/read by the client so that it can give it special benefits (client visual representations, access to certain pages, giving discount codes for merch, access to specific features, inviting to be part of a specific chat group, etc)

Creator gist:
A UI to showcase who subscribed to you, and methods of extracting/reading that data.

Aside from that:
Payment/Subscription(auto recuring payments) based on fiat pricing (Ex: $10 per month. Payment would be 16k sats for the first payment, then the next autopayment would be another $10 at more or less than 16k sats depending on its price at the time of invoice/payment).