The average bounty allocates the most tokens for Twitter, Facebook, Signature, Youtube and Article campaigns.
is there a bounty that allocates higher tokens to the Signature campaign?
There are so many projects and I think yes there are projects that have a higher allocation for their signature campaign.
You just need to search for it, But whats the point of having a higher allocation if the project isn't good enough to survive or even get a good price at the market?
It is better to join a good bounty campaign than trying your luck on those high payment but isn't guaranteed that could pay you.
You should try to research first before joining a bounty or else you could only be wasting your time.