​How to Find a Sales Partner as a Senior Developer? (US/EU market)

I have 10+ years of experience with software development and work for a large car manufacturing company in the USA.

My situation: I’m good at building products (React, React Native, Node.js, AWS) and delivering quality work. I’ve scaled products to 20k+ users and led dev teams. But I’m not good at sales or finding clients consistently.

My idea: Find a partner who handles the sales/client relationships, while I take care of all the technical execution and delivery. Think of it as a long-term partnership where we split the work naturally.

(If you think this could be a fit for you or know someone, feel free to DM me.)

My questions:

How do developers typically find sales partners in the US/EU? Is this type of partnership common? Where should I be looking? (agencies, other freelancers, platforms?) Any red flags I should watch out for?

I’m looking for 2-3 stable, recurring partnerships – not jumping between random projects every week.

Any advice from people who’ve done this successfully?

Thanks!