There are so many used miners on sale right now being dumped by people, who tried mining 6 months ago, you can get some cheap stuff and mine the crap out of it.
If you don't have enough cash you could sell the space for hosting, or start a legit cloud mining company.
legit cloud mining might be hard to sell, considering how jaded most people are about the concept due to the scammers in that space... but it certainly is a good idea.