i have a soft spot for metamask. they were the first wallet to get mass adoption, and i use their product every day.
https://gitcoin.co/profile/metamask
decentraland has done a few bounties with us and had some good success. i was initially worried that no one on the platform would have unity/VR skills, but i was pleasantly wrong about that!
https://gitcoin.co/profile/decentraland
and obviously, it's dope that the ethereum foundation itself has done bounties with us. whatever we can do to support them pushing the ecosystem forward is 💯 https://gitcoin.co/profile/ethereum