If it helps, my girlfriend is straight and didn't know of my trans status until we got to know each other better. I suggest spending time with people who you share common interests with and then gauge their reactions to trans people through casual conversation or by listening to them. It's good, not only for potential relationships, but friendships as well. Especially if you want to be stealth but fear being outed in an unsafe environment. My girlfriend is actually close friends with a trans dude, so I was able to watch them interact with each other and see if it was safe to disclose to her.
It can be done. Some straight women won't be interested, but many others can surprise you. If something feels wrong, don't force yourself to do it. You don't have to look for someone who is specifically bisexual or a part of the LGBT community.
EDIT: I should add that there are plenty of cis dudes who can't just have a family the "normal" way, and that it's nothing to be ashamed of. A partner who will only value you for your reproductive ability isn't someone who loves you, but rather a partner who loves the idea of what they want from you. And hey, if people want to have their own kids, fine. But it's not just a problem trans people face. It's a very normal thing for people to have reproductive issues, and something lots of couples deal with.