For new bounty i think you can check new ANN thread.This way you can find newest bounty.You can check also bounties (altcoins) section.You can follow bitcointalk user's signature.You can follow this side.
https://icodrops.com/bounty-list/this website is really very good and certainly can help bounty participants to choose the new bounty. But it would be great if we ask first on their official telegram about the bounty that we will follow.
If we look at the website it is quite convincing to follow projects on the web, because I am also very confident in the projects that exist on the web but with the web there are many members here who do not see who the manager handles the project This is because we can see enthusiastic members who participated in several projects on the web.