Hello . .
By choosing land & language here, you mean filters items ( or products ) that showed on website according these fields ? or you want to show other version of website that available on selected language ?
Also, have you prepared the contents of other language version yet ? The workflow usually need multiple contents. For example, 1 page would need to be duplicated to serves content on different language . .
With these worlflow, I could built a feature to allow user select their own language, and shows different content based on their selection.
Please let me know what are you thinking about these. Would love to discuss further details in chat . .
Thank you and regards,
Eni, S