At least on my searches with Google Flights, Wizzair shows up as a carrier for EU flights.
Good search engine for low cost EU carriers is https://www.azair.eu/
That's on the LCC, not the aggregator. They don't want to pay commission, and that's fine. If you want to fly on them you have to actually go on their website.
Well, you're getting it free: if you don't get any use from it, don't use it. Try doing an iterated search of every possible route on every possible airline website and let us know how you get on!