There are already some great answers here, and the diversity of them does a great job of showing how much it all depends on what you think of as work. I have a job I like that consists of a minimal amount of what I would consider work.

I'm a business analyst on a software project. The only part of it that I consider work is generating documentation. The rest of the time, I'm talking with subject matter experts about what they need and talking with my team about how we're going to implement things. My job is really not the "best possible" because I do sometimes have to do things I consider work. But sometimes I also get to do things I find deeply enjoyable, like solve hard problems by reasoning them out in a collaborative discussion.

My personal opinion is that the best possible job for someone who is intelligent but lazy would be to be a professional "expert" at something, to get paid to just share your thoughts and opinions about things with people who will do the heavy lifting. But that belies my personal belief that talking is not work and thinking about things and sharing the obvious answer is not work.

So my generalized advice is: identify the activities you don't consider work and find a career that will pay you for those. Chances are, the things you consider fun and easy are things someone else finds so hard that they're willing to pay you to do them.