i was gonna go with Private Internet Access as i've used them before a few years ago although i've heard that they've got a lot of customers and the speeds are somewhat lower now. i was also considering TorGuard.
any of the free ones are likely overloaded or they could be collecting info on you, which wouldnt really bother since all i do is browse a few WN sites and make mild comments.
if you google there used to be a list of the Top 8 VPNs iirc but that was a few years ago.
also if you start a thread on VPNs there are likely other people on here with better, more up to date info