I need someone fluent in English and German who also understands keyword research

We have a product range on our UK site called Lifestyle. We intend to put it on our German site too and we need to know the best keywords to optimise for both in terms of the accuracy of the words but also the highest volumes and what the difficulty is. You can see the products I am talking about here

https://www.ecotileflooring.com/product/lifestyle-outdoor-flooring/

https://www.ecotileflooring.com/application/exhibition-event-flooring/