Client Want to Rank Site with Different language pages

I have a client whose website has different language pages, you can check the screenshot given below:

Screenshot: https://prnt.sc/pxvemoIo7DMA
Now the client wants me to share 15 keywords while targeting all these 15 language keywords, I checked the website admin panel and there is seperate section for each language page to updaet the meta but the body part of all these languages such as:

https://abc.info/eshttps://abc.info/prhttps://abc.info/dehttps://abc.info/fr etc.

I am confused now about whether I have to work only on English keywords or have to target separate language keywords fro each language page..

Earlier I thought If I target English keywords from the main home page "https://abc.info/" the other language keywords will be automatically translated for other language pages..

If you want to target all the 15 language pages, you should research and identify suitable keywords for each language separately.

Once you have those keywords, you can update the meta and body content for each language page accordingly using the website admin panel.

This will help improve the relevance and visibility of your client's website in each language's search results, potentially attracting more targeted traffic and users who prefer content in their native language.

Ensure that each page is optimized with relevant and optimized content tailored to the specific language and audience.

You will also need to build quality links to improve authority, which will be a significant factor for a broad multilingual content rich website.

in recent days local language keywords and content are playing major role so what your client asking is a good one target on both sure the sites will rank mean while focus on Local SEO also.

English only is not enough. Each language version of the site should be optimized for its respective audience with localized keywords. This means doing separate keyword research for each language because direct translations often don't account for cultural nuances and local search habits.

For better user experience , It is good to go with their language

Make sure to have some native language readers go over the different language pages too, in case there's any huge hickups with the keywords.