What is a good site for a US player in Oregon to play bingo parlay style?

The ones mentioned above are cool, but there is no rule, it says that they are available in your country. You try to reach them and there is a problem, so you need to check what it is worth.

I like bingobilly and bingovillage, it costs nothing to try them 😉

Have you tried bingoBilly? they have all kinds of awesome games and events plus free bonuses

The most legit casinos for me are bet365, williamhill, and coral casino. This is the real deal, not need bonus and deal with useless wagering rules. Also paid to visa card instantly on withdrawal.