For a steady income perhaps the best way is to open your own business. Depending on your skills, it may bring you good results.
if business is your forte then it will bring a good result for sure. As for starter signature campaign is one of the best way here in the forum to earn a steady income. Some of it already running for more than a year now. you can try trading too, if you already master it then it will be a great way for a steady income. Money in an instant that is it for trading (day trading)