Cannot find any horses for lease!?

I have been leasing a horse for the past 7 months that I love to pieces, but after the owner lying and cheating us, my Mum is making me end the lease. I would continue leasing at that farm but it is 30 minutes away, and my Mum wants to get away from that farm. I have looked for hours but I am unable to find any horses for lease in my area. The closest one is 50 minutes away. Do you have any suggestions on finding a lease? Or do you know of any good sites to find horses for lease?