As mentioned, another Getty gateway.
I made some money from a small, dormant portfolio dating back from 2012, when bigger sales still occurred.
Only two sales worth mentioning last year, both VCG, both 6 dollar. This year: 0.
I don't upload there. You need premium membership to have unlimited uploads, so without it will take you quite some time to build a decent portfolio.
Would advice against it, not worth the time and effort.