We stayed at the Hotel L’Orologio Florence - https://www.hotelorologioflorence.com/ - and I can highly recommend it.
Central location directly on the Plaza de Santa Maria Novella, right around the corner from the Basilica and the Officina Profumo-Farmaceutica di Santa Maria Novella (amazing shaving soap -Shaving Cream – Officina Profumo-Farmaceutica di Santa Maria Novella).
Superb breakfast buffet on the top floor, overlooking all of Florence.