I’m most familiar with Canva and use it often for personal and school projects. I use it most often for designing social media posts, but have created infographics, videos, slideshows, and announcements as well.
InDesign
This is a three-page magazine spread created in Adobe InDesign, as if for a youth magazine. The design is aimed at girls age 12-18, with images, colors, and design elements chosen for that specific audience.
(Article from April 2012 General Conference of the Church of Jesus Christ of Latter-day Saints.)
Photoshop
Below are two versions of the same (fictitious) ad that I created: one for Facebook, the second for a full-page magazine ad. I blended four photos in Adobe photoshop to create the final image.