How do you find an ideal growth partner?
Setup a partnership program and attract multiple partners to work with you. To start, figure out who is the best growth partner for your company, and who is not, and then go after them just like you would go after your potential customers.
Often times, companies that have already reached out and tried to partner with you are the ones you could consider first. After all, they have already expressed some interest.
Take a look at Close.io Partner Program for an example of how to setup your own program.