Every blogger is familiar with this problem. I can recommend https://punsplosion.com/ —it's a real treasure trove of puns, jokes, and creative phrases. I've used it myself when I needed to quickly come up with something interesting for a post, and it works better than just sitting and thinking. Even if you don't use the ideas verbatim, looking at such examples inspires your own creative ideas, which turn out to be much more interesting and original. It's like a little brain trainer — after 15–20 minutes, you start to think more freely, play with words, and generate posts that your followers will really like.