As a previous member said, here in the Dominican Republic there are EVERY kind of hair texture, also straight hair is considered beautiful hair.
Practically everyone (I would say 90% of women) straighten and/or relax their hair, and beauty salons are the 2nd most common business in the country.
No one's technique is more powerful than that of a Dominican Stylist with a blow dryer. I used to go about once every 7-10 days and I had perfect pretty straight hair every single day (I dont relax my hair). Also, I consider Dominicans are pretty good with relaxers and color. BUT! you can get serious heat damage.
I am 3b-3c and one of the reasons I decided to go naturally curly is because I am moving country in january (to a city where I dont know any Dominican stylist), and in the past 2 years visiting that place I am going to live in, I tried every beauty salon I could and realized no one could styled my hair as a Dominican can.
I recommend to go to a Dominican Salon, for example, if you want your hair straight to go to a party where you are going to dance all night long and jump and sweat and have fun, or maybe it is very humid and you dont want your hair to be frizz.
Also, Dominican hairdressers are fun, laugh and talk a lot