Adobe Photoshop is the gold standard for editing pictures, creating images for articles, and general graphics works.
Canva is a web-based platform that allows me to create graphics of all kinds quickly. I have designed everything from ads to headers with Canva. It is much simpler to use than Photoshop.
Snagit is the perfect tool for screen captures and recordings. The team at TechSmith keep making this piece of software better and better.