Here are the first things that come to mind- however it is important to understand that RE is a long term game and in order to get something of value something of value has to be given whether that is time, energy, or money, etc.
You could try finding off market deals by going direct to seller. You would have to learn what a good deal is and how to analyze them. Once you find a deal you can partner with someone else. This would be a great way to build a track record, build your own portfolio, and learn.
Once you get some experience you can start leveraging OPM (other people's money). This will help you by being able to purchase more properties meanwhile you are helping people get a return on their money.
The last thing that comes to mind is learning how to do seller financing and finding a seller that is willing to do that. I have done and seen multiple deals where sellers are willing to finance their properties for little to no money down. If you can structure it to the pint where it cash flows and makes sense for all parties involved, this is a great way to reach your goal of 10+ units with limited capital. This would take a lot of time to find the right sellers + learn how to execute properly.