Around Plaza de Olavide for the picture-book version; the Ponzano corridor for eating your way home every night; the Almagro edge for embassy-quarter elegance near the Sorolla museum. Iglesia and Quevedo stations put the whole district within two stops of the centre.
Chamberí lists around 150 bookable hotels and guesthouses, from roughly €52/night. Prices on the area page are live; booking 3–6 weeks out usually lands the best rate, with free cancellation on most rooms.
If it books out or you want to compare: Malasaña (from €42/night), Salamanca (from €60/night), Chueca (from €46/night) — each with its own area guide on this site.
Curated picks are coming — meanwhile, the live search covers every bookable property at the same price or better.