Any organization that has a history of supporters, impact and relationships, alumni and beneficiaries, and so on, can be the recipient of significant planned gifts.
But, having worked with and/or looked at thousands of different types of organizations, there are definitely some types that seem to do better than others in planned giving.
One such group is any organization having to do with animals! Take a look at the following short story about a $2 million bequest to the town of Newtown, CT. The bequest is to support the animal welfare programs in Newtown.
I think I might send our dog on vacation there next year – after they open the doggy spa and retreat center.