Readers looking for a rock-solid house white should check out the 2018 Cotes du Rhone Blanc La Source from Domaine de Mourchon. Based on 40% Viognier, 20% Grenache Blanc, and the rest a mix of varieties, its medium gold color is followed by plenty of peach, green apple, and citrus aromas and flavors. It's medium-bodied, has good acidity, a rounded texture, and a clean, dry finish that's going to allow it to shine on the dinner table. It will keep nicely for a year or two.