According to the Google Keyword Planner, there is no search volume. You will only know for sure if this is really correct if you start making a content item about it. Most likely there will be traffic coming in. Not via the search term 'tastiest French white wine', but on all kinds of combinations thereof. Think of specific French wines, grape varieties, regions or chateaus. In an article about the tastiest French wine, it makes sense that you tell about it. In horizontal SEO, keywords are not the starting point, but topics.
Within SEO, you still have to write about what you want to be found on, but the reverse is also true. You can be found on everything you write about. If you allow yourself to be limited by the information from keyword tools, you may miss a lot of opportunities for findability. Also read: Google's search results page is changing: how can you still make an job function email list impact with SEO? Within the vision of horizontal SEO, you create content about anything that you think your potential customer might find interesting. A point of attention here is the distribution of the information per page. What information do you bundle on one web page and which information do you spread over several pages?
SEO is all about the relevance of every single page. By making a good page about a specific topic, it can be found on countless searches. Often also on searches that you had not thought of in advance. Long-tail vs Horizontal SEO You have probably heard of the term long tail within SEO . These are specific searches with less search volume. You might think that a horizontal SEO strategy is the same as a long tail strategy. That is only partly true. Long tail is certainly a way to get found, but horizontal SEO goes beyond just long tail.