Best way to create filters like Newegg or B&H Photo

With the extra Tagger you can also search for multiple tags. The problem is, that with TaggerGetResourcesWhere you either get the resources that match at least one of the specified tags or the resources that match all of them ( &matchAll=`1` ). But what you probably want, is a behaviour like the one described in this question:

To achieve that, you’ll have to write your own snippet.