If you are looking for a translation plugin – I can recommend the two the Polylang and qTranslate X.
The main difference is that the Polylang creates separate language version posts for a specific page, the qTranslate-X keeps all the language versions in the same post’s fields using its specific markup. The Polylang is actively updated, qTranslate-X has its hard time lately so you can have problems implementing it with some latest more complicated plugins like for instance Yoast SEO.
It depends what you like and what you need – check them both and see for yourself.