Maybe there are, but I don't know. It seems pointless to try Fiverr and similar platforms, because it seems they are already flooded with freelancers. But I never did contracting so I am pretty clueless about that. I've read old HN threads and the general consensus seems to be that you have to have connections to get customers.

back in the bad old days id trawl craigslist and find cash poor startups. they were shitty gigs but at least enough to bootstrap a career