For current prices of coins, it is always better to use recent eBay prices, or other auction prices.
For Poland, I mentioned WCN, but they also handle some Hungary coins. They have an archive that can be used to search their recent auction sales. But you need to use search terms in Polish (Hungary = Węgry).
For instance, here is a search on "Węgry, denar" in the WCN auction archive that brings up several hundred results on Hungarian medieval coins with the auction prices.
https://wcn.pl/archive?q=Węgry%2C+denar
You don't need to read Polish to be able to identify Type / Date / Catalog reference, and the selling price (remember that it is about 4.5 PLN = 1 euro for 2020-2021).
I don't know the Hungarian auction houses but maybe another member here can recommend one that has an archive like this. Then you can use the Huszar catalog plus an auction archive to learn the current market.
(Edit: I cannot get the URL to copy and paste correctly, but you can go to
https://wcn.pl and put the search term "Węgry, denar" into the Search box)