Comment by naftalibeder

Hopefully condoned plug for a service I built, Polyreader (https://polyreader.app), which lets you quickly send articles to your Kindle.

It supports (multiple simultaneous) collections, send via email, saving new articles from links while reading on your Kindle, and little niceties like sending yourself a reminder note at the end of an article ("tell mom this was interesting").

It's also cheap (free tier or $1/month).