I am an Evernote user, also an Rss and Instapaper user. In my system, I could just star an Rss or instapaper article so they would be sent to my Evernote inbox notebook. It's easy to use and that is why I have been stayed with Evernote for years.
Recently, I found Evernote's price increased dramticlly, and I also found Joplin is quite a good option. But the question is Rss service provider like Innoreader and Instapaper do not support Joplin API.
Do anyone know how to keep my old 'star to inbox' process with Joplin?
And just to add another option (at least for RSS feeds): You could integrate the RSS feeds to Thunderbird and export them from there to Joplin using the add-on below. That's my current workflow.