Traveling to Philippines

Hi, will be traveling from India to the Philippines alone for a week very soon.

1. Could you please suggest some good budget hotels for a week-long stay in Taguig City? I am leaning towards the Hotel 101-Fort and the Brittany Hotel.
2. I would also appreciate some suggestions for restaurants serving good vegetarian food.
3. I also need help on what will be the best mode to get a SIM card with internet connectivity.
4. Also, what is the best way to travel from the airport to the city and within the city?