The Accessibility Icon Collection - The Noun Project Blog
25 public domain icons about accessibility, including icons for accessibility testing, inclusive design, neurodiversity, screen reader, and transcription.
Open Peeps, Hand-Drawn Illustration Library
Public domain (CC0) Illustrated characters with mix and match hair, bodies, expressions, and poses.
Pixabay - Free Images
Free public domain images
53+ Free Image Sources For Your Blog and Social Media Posts
Free image sources. Some CC, some public domain, some other licenses. Some sites require registration.