Who are the alleged Nazis in the Ukraine government?

One of Putin's claims is that the Ukraine govermnent is made up of Nazis and these need to be removed.

We could just write this off as propaganda, but even propaganda is often twisting of or being selective with the truth to make it suit your narrative (so the fact checkers find it harder to catch you out), rather than a straight up lie.

Is there any basis for this claim? Are there notable (i.e. beyond the usual far-right backbenchers you might see in any political establishment) members of the Ukrainian government who are thought to Nazis or have similar far right viewpoints? According to Wikipedia, Zelensky himself is Jewish and his grandfather's family were killed in the Holocaust so it seems unlikely that he could be a Nazi. But what about other members? And is Zelensky himself a target of Putin's claim?

Or is this just completely fabricated?