You are basically asking others to do your job for you. Don't be lazy do your own research. You cannot rely on others for everything. There are places that group bounties together on a platform. Did you try use google?
You are looking for a way to stay updated about new bounties if I'm correct ,you can use bountylord.com ,it has every single new bounties that's been released everyday
"it has every single new bounties that's been released everyday" Complete lies.
Bare in mind that these bounty spreadsheets, while they may help you identify projects that are more likely to pay out, they also effectively advertise that project to more bounty hunters, effectively diluting the rewards you are likely to receive.
Also, most of these spreadsheets come at a cost, providing the creator an incentive to keep it upto date.
This is exactly why I keep my mouth shut when I am making good bank somewhere. It amazes me how stupid people can be. Bounty hunters that do this sort of thing are honestly not welcome ane we don't need them.