Try this – HubSpot Blog Idea Generator
Or sign up for a site (they are all, always, looking for authors and contributors) that let you pick from a pool of ideas.
Or ask each of your friends for the titles of 3 articles they would read.
You might not go with any of these ideas, or maybe you will, or maybe it’ll spur your thoughts to some other topic that you never knew was there.
Whatever the reason, you’ll start writing, something, anything – and that’s all that matters.