A few months ago I stumbled upon 'Mizes'.
You invest some crypto or USD and over time you get profit out of the mining.
Since the beginning I made quit some profit even I started buying small amounts.
Now for a limited time they give a 7$ discount on purchases.
I might consider buying some more miningpower.

When you buy enough Power you get even in like 33 days, and they already excist 6 months.
You can take a look here: (they also show a video of their miningchamber.