I noticed that Full Genomes Corporation (FGC) https://www.fullgenomes.com/ now has individual SNP tests What is a SNP? for $15 – https://www.fullgenomes.com/purchases/132/ (not an affiliate link). I don’t know when they started offering it, but when I checked a while back, I didn’t see it as an option.
In my case, I could use it as a way to double check my Y-DNA haplogroup What is a haplogroup? In addition, I could use it to check to see if my deepest known Y-DNA haplogroup matches my brothers. They haven’t done any DNA testing and this would only test one of their SNPs. As much as I would like to get a deep Y-DNA test for them, the cost is far outside of my budget for at least a few more years.