How to scale your rental portfolio

[Ashwin C.]

I recently purchased my first property (turnkey) using a conventional mortgage. After purchasing it, I realized that saving up for the down payment (25%) every year is going to be a really slow way to grow my portfolio but I see many investors buy multiple properties a year. How do you do it? How do you fund the down payment?
I understand that the BRRR method is one-way to cycle money and fund future projects but what are the other methods that people use?