I guess it depends what you want. Do you want to get paid to sell it to someone else? Or do you want to own it? I published 4 articles on allaboutcircuits.com in 2016. At the time, for projects, they were paying $200 per article. I think now it is $250 per article. Of course you need to have about 1500 words and other criteria. It must also be approved first. And then once it does get approved and you write it up, it must be reviewed by their technical staff.
It was cool and nice side money but now I rather make my own tutorials on my own website and have them as big or as small as I see fit.