There are many ways to host wiki and what is best changes from year to year. I have at least five versions running. But nothing I can offer you is foolproof. Sorry.
# Alternatives
At some point you may want to run your own Federated Wiki site, or perhaps set one up for friends or a class. We've had good luck installing on Digital Ocean, which currently offers very cheap hosting and a much simpler setup than services such as Amazon Web Services.