I have no idea why you are picking on Hetzner in particular. They offer clearly defined bandwidth packages with their servers (20-50 TB) and charge for overages (0.2 cents per GB).
Hetzner is perhaps not what you would call a premium provider, but their prices are about in line with industry wholesale rates. For example a very high quality provider that competes with Hetzner in their home market charge 0.4 cents per GB and they are happy to deliver any traffic you can serve at that price point.
Then they are not "other options", that's the point.
Webhostingtalk is a good resource for the curious.
With similar pricing to amazon. Are you not reading any of the replies you've gotten?
There are cloud providers with cheaper prices than Amazon. Please feel free to read up on the alternatives.
The whole point of this exchange has been to point out that wholesale prices are far less than what Amazon charges. Some cloud providers are more prone to follow the wholesale cost level and others are not.
If you want to discuss alternatives to Amazon then first you have to define what cloud features you want/need.
But I did ~50 TB of traffic per month at various hosts for <$20 without any issue. Just choose them well, and know exactly what kind of connection they offer.