Byung-Chul Han and Nick Land are the closest to great philosophers today that I know of, if you're interested you can pick up their work. Han is more accessible than Land, but I consider the latter far more interesting.
However, just like how 99% of people clicking on this thread would never have heard of these men, you can assume that most contemporary Greeks knew very little about their great philosophers too. The ones that did achieve fame in their time were extraordinary characters like Socrates, who made a name for himself in the Peloponnesian War and then in Athenian society through his actions. Most great philosophers throughout history who did not do this were only really considered by other scholars and if they were lucky to be born in an intellectual society, by interested royals. This is pretty much the case today as well. Maybe a few centuries later, if their work survived, another society may find more meaning in their work and make it popular in their colleges, like the Romans did with Aristotle.
Even disregarding all that, there are very few periods and places in history where all the conditions are right for an environment where there can be this kind of free thought, debate (as in writing books against other books, not IBS), and captive audiences all at once, and though they obviously correspond with prosperity and military success, it also requires a disregard of politics, financial interests, and a preexisting history of literature and at least oral education that create the necessary conditions for intellectual honesty, interest in philosophy and science, and most importantly a fascination for ideas for their own sake. Sumer, Athens, Taxila, London, Weimar, Chicago, these are the few places throughout history that come to mind at the moment.
A pre-existing theology or literary output is also ideal, since it forms a basis for philosophers to argue against and expand upon.
Currently, I can't think of any similar place where all these conditions exist for great philosophers to be recognized and appreciated, and as such, the best you can do is go down rabbit holes until you find the few that have managed to still find success or at least have got their work out regardless. Sometimes even in periods like these great minds are born, only to be forgotten until someone discovers them out of nowhere, like Giambattista Vico until The New Science was made popular by James Joyce and other scholars decades later.
