When people ask me about the best place to find sex toys online, I pretty much always have to point them in the direction of Amazon. A guy on the news a few weeks ago said that the reason why Walmart's shares were slipping mainly came as a result of the fact that they weren't selling sex products and actually said Amazon was the way to go. In that spirit - this is why I've recommended this as my top choice for gay sex toys.
I don't think I need to sing the praises of Amazon too much, but I will note that they have hundreds of thousands of products and you're going to have a great time going through their collection. I do recommend searching for 'men' for products aimed at us dudes. See, most heterosexual people are able to enjoy the luxury of buying gynocentric devices because if it ain't for them, it's for a loved one.
So yeah, Amazon man: what a destination if you love gay sex toys!