1. TripAdvisor – provides personalized recommendations based on user reviews, ratings, and preferences.

2. Expedia – provides personalized recommendations based on user search history, past bookings, and loyalty program details.

3. Kayak – uses user search history and preferences to recommend personalized travel options.

4. Hopper – uses predictive algorithms to offer personalized recommendations to help users book flights and hotels at the best prices.

5. Booking.com – offers personalized recommendations based on user search history, location, and preferences.

6. Airbnb – uses user search history and preferences to recommend personalized rental options.

7. Skyscanner – uses user search history and preferences to recommend personalized flights and hotels.

8. Traveloka – offers personalized recommendations based on user search history and preferences.

9. TripIt – creates personalized itineraries based on user travel preferences and bookings.

10. Google Trips – uses user search history, location, and preferences to recommend personalized travel options and create custom itineraries.