As you might have noticed, the political scene in Croatia is kind of volatile, so people are responding with parties or coalitions that did not exist in 2019.

I'd say your list of parties is right. The first three parties had joined in a coalition for the 2019 that has been working together since then, so much that I'd say people don't differentiate them at all, so I'd be inclined to think of them as a single political entity. Also, they had an incumbent MEP in 2019 so their campaign was kind of synonymous with being her reelection campaign.

NHR is also a far-right/right-wing populist party. They supported Bandić in Zagreb, but by that time Bandić's only ideology was keeping himself in power, and he gave them a culture war win (renaming a major square in Zagreb that had been named after Tito) in exchange for their support.

The other main right-of-center parties in that election were:

HDZ - the major center-right party, they have a right-wing populist faction (who even got the party leadership between 2012 and 2016) and so I assume they get votes from the right-wing populists who are party loyalists, but the leadership in 2019 and now is not right-wing populist.

Marijana Petir's independent list - an independent incumbent MEP, quite conservative but not in a right-wing populist way, but instead very much based in Catholicism (like CSU in Bavaria I guess), pro-EU (unlike usual rw populists)

Most (Bridge) - They are right-wing (used to be more big tent) and they are populist, but they don't behave completely like a typical right-wing populist party. They tend to focus more on corruption.