People who Own & Manage: How do you market?

[Wesley Sherow]

Bigger Pockets People,

I've been investing & managing in Upstate New York for over a year now, and have actually seen huge success in the functional, teambuilding, investment picking, operational stuff. But with a background as an engineering nerd, marketing (specifically cold calling) is the bane of my existence. I'm looking for some other ways that ya'all who are similar to me get around the biggest hurdle of shameless marketing phone calls? Any alternatives you've found?

Though I manage a lot of units, I've done so with only 2-3 major clients. I've found the clients that I've gotten so far entirely from personal introductions and recommendations, however I feel as though if I rely on this method it might be too slow. 

Any recommendations on resources appreciated as well. I've researched it a bunch but seem to always get to "join this real estate mastermind for $5,000."