Not sure if this was posted yet but we use a service called Let's Encrypt. It's a FREE SSL, for life, that is pretty damn secure. You could go and spend hundreds a year, but that's on you. I've found you can use NameCheap for even cheaper SSL but the setup is a pain in the ass.
So checkout letsencrypt.org and tell me what you think?
I'm really interested to hear people's points on this.