How/where to ask for things to include in an add-on

I’m working on a new add-on, which will do a couple of related things to URLs. Which URLs will be partly determined by a list included with it. As the range of possibilities may be vast, I would like to ask people for ideas about what to include in this list. I’m not sure what the most appropriate place to ask is, though. Can someone advise about this, please?

My suggestion would be to build what you think is interesting and people will give you feedback if they’re missing the very option they’d like.