The best way for a steady income, especially when it comes to Bitcoin, is to probably join a signature campaign and always cap out whatever the maximum number of posts a day/week/month is, that way you get a relatively simple and consistent income directly in Bitcoin. Now that doesn't fit your criteria of not doing anything, so that's out of the question.
One potential idea is investing in a casino bankroll and get paid that way. I haven't done it in the past but with enough research I think you'd probably have a good idea of how it would all work.
Gambling is too risky, although it returns high, but the risk is big. I personally do not recommend gambling, to participate in a signature campaign is a good choice.
That's a normal thing in gambling, the risk is high so as the rewards. Wen you decide to consider gambling as your way to steady income then you have to prepare for the possible negative outcome also, you must know all the possibilities so you will be able to analyze and justify your move, and just like a business, you must set a good amount of capital and an experimental period to determine if it's profitable for you or not.
Actually it's true, gambling is too risky, and it should not be considered a way of getting steady income as it is more in the losing side and lesser of a bigger win. If you sum all your losses and wins, you will still fall short in winning. Also, putting in bigger capital in your bankroll would just make you careless in betting and always thinking about second chances.