What is a good free/paid dynamic content translator for a resource?

Question

Machine translation from one language to another

There was a task to translate the internal dynamic content of the platform where users will add articles. The mechanism for translating the resource pages themselves is implemented. What is interesting is the translation of internal content, which will be constantly added by users.

I looked at booking.com as an example.
This resource contains ads for booking hotels, and for example, the same text of descriptions is translated quite competently into a huge number of languages.
I have doubts that such a service went by creating a database of variations and stuffing them with translation templates. Therefore, I assume that this is a high-quality machine translation of some service. And apparently it is a little similar to Google\Yandex.

Perhaps someone can recommend a good service for such tasks with available documentation for implementation.

Answer 1

This