@jollysea @glyph To add to this, here are some diverse collections of free stock images of people:

https://genderspectrum.vice.com/about - trans and non-binary people
https://canweallgo.com/plus-size-stock-photos/ - fat people
https://affecttheverb.com/collection/ - disabled people
https://www.flickr.com/photos/wocintechchat/albums/ - women of colour in tech

(some but not all require attribution e.g. under Creative Commons licenses)