A legitimate place to find relevant and current clip art is Microsoft's site:

MS Office Clip Art

This site is especially nice for professional presentations, articles, reports, or school projects.

I use it quite a bit and highly recommend it!

MS Office is great for a variety of professional templates as well.

Thank you for sharing this

I've been using Pixabay.com and Pexels.com quite a lot recently. Both have vast amounts of beautiful stock images and art for use.