The group is called SAW Real Estate Investor Meetup and can be found on Facebook.

have you considered facebook ads?

You can also check their reviews online at Google, Facebook, or Yelp.

I have joined some local groups on Facebook, but was wondering...  

@Anibal SanchezHave you looked into attending local meetings and joining Facebook groups?

Any suggestions on where to look other than the facebook outreach I've been doing?

Over the past decade, Columbus has attracted substantial investment from tech giants like Intel, Google, Amazon, and Facebook, which have collectively committed over $50 billion to developing data centers and semiconductor manufacturing facilities in the area.

There is the Experian Boost that adds monthly utility bills as credit and various apps and facebook groups.

I will check out the facebook groups. 

You can also check meetup.com or search Facebook for real estate investment groups, clubs, or meetings in your area.