Ones that let you hop in just whenever you feel like it and do one hour of work, with no commitment to minimum hours per week? And that you can put in a single productive hour every so often, without ramp-up time eating that entire hour with nothing to show for it? And that pays enough to make it worth it (i.e. not Mechanical Turk or whatever)?
I don't even know what such an ultra-flexible, low-context (= near-zero ramp-up time even if you only do it an hour or two a week, and some weeks not at all) but still high-paid gig would look like, or how to go about finding it.
Meanwhile, you can value-shop if you feel like it, or not if you don't. Entirely optional and no commitment or outside expectations. You can do it very seriously one week, then not do it at all the next.