What's your favourite unknown newsletter?

What are your favourite (good) newsletters that don't have many followers. It seems that every newsletter I come across has 150k+ subscribers after starting 2 months ago, so would love to hear about some lesser-known newsletters that have great content.

I super like Simon de la Rouviere’s work. He writes thoughtful long form content circling fiction, storytelling, communities, social media, web3, NFT, art and crypto. Often ahead of the curve of how new technologies can be applied.

https://newsletter.simondlr.com/

He also wrote a sci-fi book that showcases many of his ideas in a story. It is fun to follow a newsletter that gets bundle into something more over time. Book link below:

https://www.amazon.com/dp/B08L8LQDC4?ref_=cm_sw_r_cp_ud_dp_4...

The newsletter is just website updates, but I recently discovered https://brr.fyi.

Also, it is probably well known, but I don't ever see it posted here: Liberty's Highlights - libertyrpf.com