This sounds cynical. The typical way girls do this is to gain employment where very wealthy men will be on hand. This might be P.A. work where you spend hours every morning and umpteen dollars every weekend to make yourself as beautiful as possible, then go to work and aim to be as useful and irreplaceable as possible. He'll probably notice you and notch you up as an available piece of eye candy.
Ouch, isn't there more to life than this? Rich men have expensive pursuits. You'll meet them if you involve yourself seriously in these. Take up classic car appreciation, rare antiques. Alternatively, find something in yourself worth developing and hang who you meet.