Need advice on how to use equity

[Mikki McIntyre]

I bought a property in November 15, 2015. It was listed for 145k as an estate sale but got it for 100k, put 20% down and our current mortgage payment all in is $860 a month. I put 20k into the rehab and have it rented for $1600 a month. The property is worth at least 160k now. I want to buy more properties. Should I do a cash out refi, or is there a way to get a HELOC or any other way I should do it to pull some money out for another property. Thanks in advance for any advice!