How Can I put my house equity into an investment vehicle?

[Jackson Fairbanks]

Currently in a primary residence that costed my family around 350k over the 19 years, I've lived here it is now worth over 700k. Can anyone put me in the right direction of tapping into this equity to reinvest it in a rental property for me and my siblings to house hack in Sandiego, my whole family understands the immense benefits and is on board, I just want to see if it will be efficient or if using the equity of the house will come back to bite me. I appreciate any input thank you!