I’ve been doing a bit of reading on this an here are a few articles.
https://www.bostonglobe.com/2021/12/15/opinion/expand-supreme-court/
https://www.brookings.edu/policy2020/votervital/should-we-restructure-the-supreme-court/
https://www.politico.com/news/2021/04/26/liberals-expand-supreme-court-democrats-484562
https://www.whitehouse.gov/wp-content/uploads/2021/12/SCOTUS-Report-Final.pdf