Screenshots are fine. Smarter screen capturing is better.

TextSniper allows you to quickly convert uncopiable or unselectable text from any content visible on your mac’s screen into editable text copied to your clipboard.
Use it to capture and recognize text from presentations, trainings, screencasts, images, pictures, webpages, video tutorials, photos, PDFs etc.
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Presentify is a menu bar app that lets you annotate anything and not just screenshots or images. It can also annotate videos, pdf, images, code, etc. Nice for online classes, video calls, tutorials and presentations.
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Xnip is a powerful screen capturing menu bar app. You can even resize your captured region when you are annotating. Capturing while scrolling is also possible.
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With this menu bar app you can record your screen as a GIF.
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Take screenshots right from your menu bar. Just click the camera menu bar icon and choose one of the options.
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