https://www.amazon.com/Colors-Knitting-Markers-Clothing-Storage/dp/B07MDK5MSQ/ref=sr_1_49?crid=3THQFPW2A1QPS&keywords=stitch+markers&qid=1680884594&sprefix=stitch+markers%2Caps%2C118&sr=8-49
I bought a package on Amazon that has 22 different colors. It makes it so easy to find ones that don't blend into the yarn, and I can use different colors for different counts, or parts of the project.
https://www.amazon.com/Colors-Knitting-Markers-Clothing-Storage/dp/B07MDK5MSQ/ref=sr_1_7?crid=3ODI64CM5C61E&keywords=metal+stitch+markers&qid=1680806131&sprefix=metal+stitch+marker%2Caps%2C164&sr=8-7