Cash Out Refi vs HELOC vs Home Equity Loan?

[Arnold Hwa]

Hey guys,

First time poster here! I'm in a state of confusion about what the best path for me is in regards to a new rental property I'm looking to purchase.

I think it'd be good to start off by stating my Macro Goal- to buy and hold and generate a great passive income source off of all the properties I own. 

Currently I own outright a rental condo (no mortgage on this), and a single family home (mortgaged, and purchased fairly recently so low equity on this right now). I'm looking to potentially get into multifamily units. 

I don't really have the cash right now for another down payment, but I want to be able to utilize the fact that I have 100% equity in my rental condo to help. I did some research and I'm wondering which option cash out refi, heloc, or home equity loan, would be best suited for a person in my situation? 

And if I haven't provided enough context or need more info to give me your thoughts, no problem, feel free to ask away.

Thanks!

Arnold