Since there are no safe places to find images, why don't we consider this as a sign. A sign of what, you might ask. It's a sign that it's now time to write content WITHOUT images.

It's time for readers to grow up. We read print books without images. Why can't we read blog posts without them. Definitely use a variety of fonts and lots of white space.

If you MUST have images, put a quote on a coloured background and make that your image. No copyright risk with that!