I personally love Lagunitas which is about 10 minutes from Russian River. They have some cool offerings that aren't bottled and fresh Lagunitas is pretty ******* hard to beat, and they have a great outdoor patio. I haven't gone on their tour in a couple years but even then it was cool seeing how big they are, and I know they've grown since.
ALSO, across the street from Russian River is Flavor Bistro, which features six taps from Moonlight Brewing. If you've never had Moonlight, prepare to have your mind blown by their amazing lagers and other beers. Especially Death and Taxes!!