1 - https://www.tesla.com/careers/search (sort by marketing)
They did this by astroturfing and paying for upvotes/likes.
Tesla claims to not spend money on marketing, but I consider that a dubious claim.
To answer your question, start looking for an affiliate who is in same niche as you.
People often don't think of affiliate marketing as part of their growth plan. Most start-ups may not know where to find someone who can promote their business.
Couple of week I started working on a new project that not only tracks commission and sales but also connect businesses with influencers, bloggers, etc.
It will take couple more months before beta is available but feel free to subscribe to get notified https://www.affiliatehunt.com/.