Hello tarzan7,
I am a Thai woman who was originally born in BKK. After reading all the comments, I agree with all the comments. There are always good and bad people everywhere. If you look for a gf/wife from bars, it will be hard for you to count on her later. I have many foreign male friends who were hooked with bar girls, educated/upcountry girls, etc. Some are bad and some are good. Even though I gave them some advice, they were fooled by those girls. For example, one of my male friends had a Thai gf. She was early 20s, but she went to my friend's office (he works in BKK) to see him/pick him up from time to time. She did that for almost 2 years, and she firstly told my friend that she came from Chonburi but moved to live in BKK since she was very young with her sister. She even lied to my friend that she studied at RU and had to go back to Chonburi to see her parents every weekend. I told my friend that I couldn't believe this based on what many stories he told me and her look. Later, my friend followed her to Chonburi after my last advice and hecaught her living with a German business man there. He was completely fooled for nearly 2 years by that girl.
What I am telling you about this story is you sometimes can't judge or look at people based on their status, races,religion, education,etc. Each person is unique and completely different. If I were you, I would not look at bar girls. Kinda risky and might break up after marriage later.
To find good ones, there are lots if you walk somewhere such as coffee shops, book shops, etc. You sometimes need to be able to differentiate with people and the areas.
Hope this helps & good luck finding Ms. Right!