These platforms may be of interest to you...
https://angel.co/
https://www.fundable.com/
https://www.startengine.com/

You can also apply for a small business loan (depending on your business).
https://www.sba.gov/loanprograms

Lastly, I'd recommend that you don't do any of these things right now.
Try reading these from Brian York (CEO @ Bliss and investor at Bassin Ventures) instead...
https://medium.com/swlh/how-to-raise-your-first-100-000-for-first-time-founders-e9bef553b0e3
https://medium.com/@brianyork/how-to-get-endless-intro-s-to-your-startup-e822b278e956#.yzmonotc0