And I'm not joking.
Assuming you're decent looking. Dress your best, act to impress, have all your outergame ready.
Now go to any gay bar or club. And have the full PUA walk, et al. Guys will start hitting on you. It's quite incredible. I've read all the PUA work in the world, but nothing gives you a true understanding of how it feels to have endless streams of mostly revolting men hitting on you. Being straight, you'll have no attraction to any of them.
But notice one thing. The ones you find interesting to hang out with will be the kind women are attracted to (generally), except for the fact that looks don't matter at all to you. Rich are interesting... all of the things PUAs recommend to make yourself attractive, you will notice, are things that make your 'suitors' interesting to you (albeit not attractive). Super alpha's are interesting too.
I know it sounds weird, and don't ask why I was at a gay club (I was with a multimillionaire owner of a local corporation fyi), but for God's sake, give it a shot. You will truly understand the dynamics so much better. It realy helped me for sure. It's worth a try. (And if you have really low self esteem, it will help your ego

)
Seriously.