Simple question for Experienced Flippers

[Spencer Cornelia]

I am in the process of finishing up my first two flips.  I used a general contractor for each of them.  Moving forward, I would like to connect with other contractors who can complete rehab projects for me.

Should I continue looking for GC referrals and use solo GC's?  Or should I start looking into Construction companies?

In Facebook groups, I see people referring legit sounding companies to do the GC work.  I'm talking about companies with real websites, what appears to be multiple employees, and facebook groups that look credible.