Vehicles for saving and funding your REI

[Edward Suess-Hassman]

What vehicles or strategies does everyone recommend to fund their Real Estate Investments? I'm specifically looking to what should I do with the money I am saving? I have a 457 I put money into that I can leverage, but after that where should it go? Brokerage account? High Yield Savings Account? Overfunding a Whole Life Insurance Policy? 

I currently also have a Primary Residence I can do a HELOC on, and some stocks I can loan against. However, I am struggling with how to pay off said loans if I go with those strategies.

Thank You!