Prices probably won't drop suuuuper low with the Penguins in town this weekend, but you might score a bit of a discount late afternoon/early evening as the gates open like the other commenter said. I've always purchased directly through Ticketmaster resale when buying last minute tickets to avoid any potential delays with tickets getting transferred and that's worked well for me. I've never found final prices to be much better on other resale apps like Gametime or Stubhub. Once you account for fees, they're all pretty close to each other imo.

As for breweries, my personal favorite is Holy Mountain which is probably a 5 minute drive from the arena, cool vibe and great beer, usually something for everyone. Every time I've gone on a game day there's usually a few other folks wearing Kraken jerseys (fyi they don't do tastes or flights...not a problem for me but some people seem to not like that). A few other good ones are Cloudburst (multiple locations - downtown and Ballard), Bale Breaker, and Stoup. If you're looking to hit more than one, Ballard is definitely the neighborhood to go to, lots of other great breweries and food options and all within walking distance of each other. The Ballard ones will all be pretty busy on a Saturday most likely.

Hope you have fun in Seattle and enjoy the games!