Anyone know some _expensive_ resources to learn Swift?

I'm not looking to learn swift actually haha. I have a few domain names I want to sell. I figured companies selling expensive resources tend to have more budget 😄

One of the domains is learnswift(.)com 👀

I tweeted Ray (@rwenderlich) from the Ray Wenderlich platform.. awesome content for noobs and profis.. Might have budget for such domain purchase