Since you use it yourself, sharing your own topics seems like a good way to start?

Yeah. Here are some I could share https://ameliorate.app/keyserj/highlight-nodes-thread https://ameliorate.app/keyserj/edge-labels-overlap https://ameliorate.app/keyserj/voting-systems https://ameliorate.app/keyserj/use-cases. The group discussions can be found right now at https://ameliorate.app/keyserj by searching "discourse"