Why stick with for-profit companies? But on measure I'd say System76, n8n, Nextcloud, GridX, Odoo, Tuxedo, GitLab, Uplight, Aurora Solar, Bandcamp (maybe), Bitwarden, Canonical (maybe), Scribd, Arcadia, Wikihow. Basically any time you find yourself enjoying a product you're using, see who made it and if they're hiring.
Sure it's an uphill battle. This is late-stage capitalism after all and unless you're comfortable with a role that extracts from people who weren't planning in being extracted from you're not going to make a ton of money. That's what it takes to be on the side of the angels though.
Because for profits have the most employment opportunities? All of the companies named in replies to my initial comment hire a minuscule number of people.
I'm not unemployed right now, but in the past have applied to literally every one of those companies and been declined from every one of those companies.
It's hard to find jobs at companies that aren't run by monsters; even if you can identify a company that isn't terrible, there's still a relatively low likelihood of getting a job there.
I'm not blaming the companies for not hiring me, I'm sure they have their reasons for their terrible decision of passing up on someone as handsome and smart as me [1], and I am certainly not entitled to a job, but when I run out of companies that seem ethical, what do you do then?
It's easy to say "well start your own company!", and sure if you have the ability to do that then that's great, but I don't even really know where to begin with finding investors for stuff I'm working on, and I'm not sure that anything I'm working on would be interesting to investors anyway.
[1] It's true, my mom told me!