Customer advocacy program management and technology

Hi all - let's discuss customer advocacy programs, as in "hey customer, become a (named champion) or join our (named) advocacy program." If you have a named program, do you also have Influitive or Base or some other place for customers to log in to? Or do you just maintain a list of everyone opted in? If not Influitive/Base, what tech do you use to help you manage your advocates and keep track of what types of activities they want to participate in? I'm working on some ideas for 2025 and want to see how others are thinking about planning their programs for next year. My goal is to have a group of customers I can easily invite to participate in advocacy activities. Thank you!!