Through which sites / services is it most profitable to screw oauth authorization?

Question

Facebook

Hey!
I noticed that on most sites, in order to be able to log in through third-party sites, they usually offer a choice of ONLY social networks (vk, fb, ok). What about Yandex, Google, Mailru?
In order not to clog the interface and code, I want to choose 2-3 services, but at the same time cover the largest possible percentage of users. Probably a lot depends on the target audience of the service, but still, maybe there are statistics on the penetration of social networks and search services on the Runet, for example? Which ones do you use in your projects?
PS An important factor for me is to receive a visitor's e-mail during authorization, and social. Not all networks give it away.

Answer 1

Make 3 buttons -
- VK
- FaceBook
- through mail providers (and this button is already revealed in google, yandex, mailru and others). The icon may look like 4 small icons of different mailers in one.