Some other legit casinos that offer this game: Fortunejack, Cryptogames, Stake, Bitstarz, Luckyfish, ...
As Shoreno mentioned, the Plinko game at Bitvest is more unique than others as you can modify your prize.
I think the gambling places you mentioned are very complete and I think there are many other casino places but from the list that you provide I prefer to participate in fortunejack which I think is the best.
@OP, Are you going to update your list of casinos as there are suggestions here like FortuneJack, Bitvest, or Luckyb.it that are well-known here in the forum?
Luckyb.it is one of the oldest platforms that I know of in terms of plinko.
And now, they are launching the new version of the site.
And FJ is one of the reputable casino sites here in the forum.
So I guess, you need to add those in your short list with plinko game.