Listed below are my favourite free or cheap content generation tools:
Add calculators, quizzes, polls with embedded templates. Just copy and paste the coding into your CMS of your website.
Generate automated Instagram, Twitter, Facebook posts and WhatsApp messages. Also this service is great for adding a little bit of humour to your social media posts.
Knight Lab Timeline
Timeline JS is a free tool for telling stories in a timeline format. Major publications already use this tool, e.g. Mashable, EnGadget, CNN and Time.