VPN Articles from ElReg!
Here are a few from last year. The first is about Android options, and the article I referenced above.
https://www.theregister.co.uk/2017/01/28/vpn_on_android_means_voyeuristic_peeper_network/
https://www.theregister.co.uk/2016/10/25/avira_debuts_freebie_vpn/
https://www.theregister.co.uk/2016/09/20/opera_desktop_browser_vpn/
This one concerns desktop,and laptop. Specific to business I think.
https://www.theregister.co.uk/2016/02/26/ssl_vpns_survey/
Now, there are lots of other reviews out there, but do your homework folks, it's a jungle.