Where would you put your money to invest in between properties

[Eric Piccione]

Hey party people! I am curious what to do with a percentage of my income every month to put it into investments in real estate. Currently, I'm putting my income into an ETF and then when I find a deal worth taking action on, I would withdraw and invest. 

I'm doing this because I would like to grow the money while it's sitting more than it would being in a savings account. I've also looked at HSA and IRA accounts but I wouldn't be able to withdraw to invest from my understanding.

Are there better ways to go about saving? 

Any and all information is appreciated!