What are the main businesses in Manila currently accepting crypto as direct payment?
Anything really - coffee shops, groceries, cars, gold, houses, hotel bookings and so forth.
For that, if you have coins.ph account, refer to their supported merchants. Not a direct payment though but at least your BTC balance can be used.
The majority of businesses in Manila are far from accepting crypto payment. The most used here is fiat cashless system e.g GCASH, Paymaya, Debit Card, Credit Card which is much quicker and less hassle. So if you want to use your bitcoin, the best thing to do is to cash out from these payment services then used it directly to the merchants. No need to purchase a card as scanning the QC code to make payments is enough.