Well, most writers write fresh content this way, except for the spinner chief part. Instead of just copying whatever comes up on the first 5 spots, you could curate the best writeups on your topic, put it together and try to improve whatever is already there on the internet. Once your new post is live, go email everyone who has linked out to the sources you used and tell them you have a better one just published. You may get some solid links this way.
From personal experience Spin Rewriter is the best! like I still use it today. Its so easy to use (Just copy paste and the program do everything) Because of this tool I managed to schedule content and articles for 3 years, do you know how much time and money I’ve saved?!?! A LOT!!! Also i high recommend you pick their mothly plan if you are still in doubt