For example, donate to the American Red Cross, Sierra Club or Women for Women International, and earn 10% to 30% of that tax-exempt donation back in the form of an Amazon gift card. You can then donate that cash back to other charities, purchase items to donate to your local homeless or animal shelters, or simply use it to help feed your own family that month.
Prior to that group, they had an online community for teachers looking for lesson plans. That probably sounds pretty random, but it's crazy the type of communities you can build and rally people around. If it's something that you're passionate about yourself and you want to connect with others that have that same passion, then an online community is something you should definitely consider.