I like websitetutorials.
Importantly, the .info and .org are available and I think that both TLDs need to be regged by yourself given the keyword context.
I would say low to mid $,$$$. If you reg the other two, you might sell all three for more.
Or hold and I see further value. If you have the time and skills, I would setup a site that questioned people what tutorials they wanted and use that as evidence to sell to an end user.
Good luck