I'm creating a translation web service, and wondering which approach will be better in terms of SEO. The app will allow users to translate between English, Spanish and French, using two select fields on the page (For "Source" and "Target" language options). Here are the two options that I see:

Option 1: Have one url and Page title for all translation options, like so: url: "mysite.com/translate". Page title: "Translate between English, Spanish and French".

Option 2: Have the page title and the select fields change based on the urls. Examples of what I mean: url: "mysite.com/translate?english-to-french". Page title: "Translate English to French". url: "mysite.com/translate?spanish-to-english". Page title: "Translate Spanish to English".

The "selected" option in the select fields will also change based on the url parameters, with a total of 6 variants of the same page, and then I can let Google fetch these pages as different pages.

Which one will be better in terms of SEO?

PS: I plan on having several different languages, but have only given 3 for the sake of brevity.