PS Here's a DNA service for Jewishness. At the bottom is a list of genetic studies. https://www.igenea.com/en/jews

I saw another long pdf by someone who had investigated other DNA services such as 23andme. It is not so informative about Jewishness as about the shortcomings of these commercial tests, worth reading just to see how their results can be inaccurate. https://jsp.sitehost.iu.edu/docs/2015_16/Bern%20Essay%202016%20-%20Grynhein%20Leah.pdf#:~:text=Despite%20this%20profuse%20amount%20of%20research%20to%20distinguish,defined%20as%20a%20subcategory%20of%20a%20larger%20region.