We will be arriving in Cville late morning during the week; would like to visit some vineyards that afternoon (next day will be at Monticello). The private tours are more than I'd spend. We are not newbies to vineyards having visited CA and some in France and Italy. In general, are the tasting rooms open or must one arrange appointments? I haven't searched the vineyards yet by name; at first glance, none was familiar to me. Any favorites to be recommended? Thank you.