I’m not sure if I see anything to be solved here.
1. Content doesn’t need to be in your feed to get signal from zaps - if you have a most zapped feed you’d discover that way.
2. I don’t see why you’d want a zap to trend considering this can be faked. Even legit zaps - seems a lot like bragging and gives off negative vibes.
3. There is no forced choice between zap and share - people can do both. Zap then share.
Overall I get markety gross vibes from needing to advertise zaps. If the note already displays zap amounts, I don’t see why the zap needs to be shared on its own.
Perhaps this is just my personal opinion of zaps’ place in social context and perhaps it’s the reason I only zap anonymously now. I see some clients do zap embed in notes now but I personally do not like that nor agree with it.