Finding 4 plexes

[Rigo Medina]

I am a newbie and have not seen many 4 plexes on Zillow or others. I know they are out there, because I have driven by them. What is the best way to find 4 plexes that are for sale or have sold? I am curious to see stats on the 4 plexes. I see lots of duplexes listed.

The reason I am interested in 4 plexes is because you can get 1 mortgage and have 4 sources of cash flow/rental income. I did not want to reach out to a realtor yet, as they may think it is a waste of time if I am not ready to buy.

Any tips are welcomed.