I have 10x 6p 18650 batteries. 13AH. I found a protection circuit. My issue is that I don't know how to charge the batteries. I could use a power source but I got it from my school and it isn't mine. They sell for 500+$ so it's out of my budget. I couldn't find much information for 2s+ battery pack.
I am guessing that you mean a 10s6p, not 10X? The lithium ion BMS board that you linked to is for a 10s battery.
Are you building your battery or have you bought it? If you are building it, then you need to add a balance cable with a JST-XH female connector.
With this, you should be able to charge your battery with its BMS using a number of chargers. One example that comes to mind is the imax 1010B+ charger. You can go to the Imax web site and look at their chargers. They are not cheap, but certainly less than the $300 you quoted above for a power supply. With the imax charger you will get a proper balance charge of your battery using the proper CCCV charge algorithm which you won't get with a straight power supply.