Private lenders for 30 year fixed mortgage - Denver/ Aurora, CO

[Vee Vu]

Hi everyone, after many years watching other people investing in real estate, finally I pulled the trigger. I bought my first house as a primary residence last December. And now, I am ready for the next one. However, my lender said that in order to get another mortgage 5% down with low interest rate, I need to wait for 1 year. And I asked about investor loan, but the rate (5.5%) is high comparing to primary residence (3.5%). And I only want to put down 5% - 10%. How/ Where can I find private lenders who can do 30 year fixed mortgage with 5%- 10% down (price range: 350K - 550K)? Thank you