While you should strongly favor photos of our own folks over stock photos, stock photos do have their place. That place is primarily ones where faces aren’t seen.  There are many sources of stock photos out there, so here are a few suggested ones. This page is periodically updated from the list maintained in the Facebook group.

Free

No attribution required

Attribution may be required

Paid services, no attribution required

These services may have some free photos, but access to the full stock of photos requires payment.

Pay once, use forever

Subscription services