I know over a dozen 1-2 person SaaS, not including my own. Some of them have hired some help now but they are still more on the "lifestyle business" side. They are in many different spaces, and founders from around the world. I am not a big networker, but this is my niche and it's big enough that I just know a slice.
I don't know any. I know a couple of people who had ideas that became bigger startups, but only 1 who was a friend rather than via networking. And I know a few people who did try the small saas or other small software based business but they all failed and now have jobs.
Ok? My point wasn't that they don't exist, I was just pointing out that anecdata from one person who is deeply into a group where it's a thing has large counter points. And I thought my example worth mentioning because my group is into it but nobody amongst it has made a success of it.