There is a group of keywords that are very easy to rank for and are very profitable - they're called "time" keywords. These are basically keywords that have the year in them.
They are available in all niches and what I've been focusing on the last few months. My new website, which I started 4 months ago, exclusively focuses on "best of" posts with the year in them. I'm over 200 visitors a day and have had a few $100+ days so far. Every month traffic doubles and so do profits (profits are starting to quadruple!)
The new year is coming and now is the time to make as many "best of 2017" posts as you can. I've created over 25 and have about 50 more to write. I expect them all to make it to page 1 and to make me money.
Hope you take this advice!