Receiving Funding for your Tutorial
Currently, as polkadot.study is being started. There is a safe funding for 10 tutorials. Read this page for the call and some more details.
If we agreed on a tutorial you can go ahead writing, half of the funds will be paid upfront and half on completion.
Future Outlook
In the future the plan is, that authors can get an easy way to apply for funding. The idea is to have a decentralized governance mechanism to select and secure funding for authors. How exactly this will be implemented is yet to decide. There could be a process in github, where authors submit their ideas as issues and followers can reply and vote, or directly onchain or via bounties.