Are there free cyrillic fonts similar to Montserrat, Proxima Nova, Intro?

Question

Fonts

Proxima is an incredibly beautiful and usable font, the best gift for a designer - if you have more than a thousand euros for a full pack. The intro is no less good, but not so versatile - it's painfully funny. Monzerat is free, but not Cyrillic. Who will advise what?

UPD:
found a very good TornadoCyr, but paid.

Answer 1

I don't know about a complete equivalent. But more or less similar comes to mind...
Maybe Museo? There is a whole super-family - sans, slab and something for a fee, something for free.
I also remember Lato, like the rules. Roboto is not bad, but it is narrower. Fira Sans is more fun.