People
We've created a library of free people plus links to free and affordable stock photo sites.
People
The best person to show in your marketing is you. Set up a shoot with a professional photographer and get a full set of photos (make sure you get transparent backgrounds). If you're not comfortable with yourself, get a set of stock photos.
Resources
Resources
Check out these free and paid resources
Unsplash
My favorite royalty free stock photo site that offers beautiful HD photos, including photos of people.
Pexels
Another site with a great library of royalty free HD photos.