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Instapaper for Kindle might be better.

https://www.instapaper.com/apps

https://david-smith.org/blog/2012/10/11/instapaper-on-the-ki...

I wonder if Pinboard - the regular website - would work for this. I've never tried it, but since it's such a plain no-frills HTML page, there's a change it would look good on a Kindle. (And probably have good perf too - no oodles of JavaScript to execute)

I use p2k.co, which works ok enough for me in the free tier that I haven't bothered implementing my own...