A 32-year-old man presents with pleuritic chest pain, fever, and productive cough with rust-coloured sputum. He is otherwise healthy. Vital signs: temperature 38.5°C, respiratory rate 22, blood pressure 120/75 mm Hg, oxygen saturation 95% on room air. CURB-65 score is 0. What is the most appropriate empirical outpatient antibiotic regimen for community-acquired pneumonia in this patient in Canada?