1. Metro: The metro system in Porto is efficient and covers the main areas of the city. It's a convenient way to travel and explore Porto, with regular services and affordable fares.

2. Tram: The historic Tram 1 route takes you along the scenic Douro River, passing through iconic landmarks like Ribeira and Foz. It's a charming and nostalgic way to experience the city.

3. Bus: Porto has an extensive bus network that connects various neighborhoods and attractions. It's a cost-effective option for getting around, and the buses are usually reliable and comfortable.

4. Train: The train service in Porto is especially useful for day trips to nearby cities like Braga or Aveiro. It's also a convenient way to reach other major destinations in Portugal.

5. Funicular: The Funicular dos Guindais provides a memorable ride with stunning views of the city. It connects the Ribeira area to Batalha, saving you from climbing steep hills.

6. Bike-sharing: Porto has a bike-sharing system called "Bike Porto" that allows you to rent bicycles for short trips. It's a fun and eco-friendly way to explore the city, especially along the riverfront.

7. Taxis/Uber: Taxis and ride-sharing services like Uber are readily available in Porto. They offer a convenient option for getting around, particularly if you're traveling in a group or with heavy luggage.

8. Walking: Porto is a relatively compact city, and many attractions are within walking distance. Exploring on foot allows you to soak up the charming atmosphere and discover hidden gems along the way.

Remember to check the official websites or reliable sources for the latest schedules and fares of each transport option.