Seeking share URLs for every platform

I wish there was a conclusive list of “share-to” URLs. For example, here’s the URL you can use to build a “share to Threads” button:

https://threads.net/intent/post?text=

Here’s the equivalent URL for Reddit:

https://reddit.com/submit?url=

Every Known site has a URL like:

[domain]/share/?share_url=

Every Mastodon instance has a URL like:

[domain]/share?text=

Does Micro.blog have a share URL? How about WordPress installations? Ghost? Bluesky? And platforms like Lemmy, etc?

I’m on a mission to collect them all.