Go to "Advanced Image" Search box, type what you're looking for in the search box. Then scroll down to the "Usage rights" section and use the drop-down menu to choose what kind of license you want the content to have (i.e. "free to use or share" or "free to use share or modify").
General photo website, but Pexels also offers collections curated based on searches such as "diversity" or "inclusion." Or find Indian images with this search.
Find over 900 free images with Asian people, food and travel with this search, https://pixabay.com/images/search/asian%20people/. Or type in "Diversity" for over 1000 options, https://pixabay.com/images/search/diversity/
From Flickr, the #WOCinTech (women in tech) photos are free under a Creative Commons Attribution license (which means you can use them with the attribution).