If you want to move your Instapaper bookmarks to Pinboard, this script can be helpful: https://gist.github.com/jaanus/3f5fc340c0f8a92f3ecc06dabcf38970
Mastodon is the best way to keep up with what's happening.
Follow anyone across the fediverse and see it all in chronological order. No algorithms, ads, or clickbait in sight.