Family, friends, relatives, etc.
Role model, grandparent, father, mother, sister, brother, etc.
Work
Teammates, peers, manager, partners, cross-team groups, key contacts, etc.
Manager, leader, mentor, etc.
Friends
Friends, community, groups, clubs, teams, special interest, online, etc.
Friend, neighbor, community leader, etc.
The idea in relationships is to invest based on what you want to accomplish. For example, be the father you want to be. Get the people on your side to make things easier at work or to sell your ideas. Be a great friend. Be a good role model. Be a great mentor.