Recently started using Mullvad. Their client is not top notch, but the connection speeds are good and they have a good enough selection of IPs. Monthly subscription is cheap, arount 6$, but it gets better. When you get an account number from their site(takes less than a minute) you get 3 hours of use for free. So basically you don't really have to pay for it, just get new account numbers every time and you'll be set for good.