We're getting close-ish to the release date and I dunno how into character crafting you all are but I find it fun, even if I wind up going in an entirely different direction once the game actually drops. I usually use http://www.miniworld.com/adnd/100ThingsAboutUrPCBackGround.html to get a clearer picture of who I want in my head. I also found http://sugarbombed.com/forums/threads/countdown-the-hundred-day-g-o-a-t-exam-updated-daily.3744/, it's Fallout specific and I get the GOAT is usually orientated towards skills and it did help with that a bit but it helped shape morality/reasoning in my head too. There's also https://www.reddit.com/r/ICanDrawThat/, but I've never used it so can't vouch for it. If you wanna be really thorough there is also a variety of personality tests on the internet, I like using the http://www.16personalities.com/free-personality-test as a component for creating characters. Generally ain't no one got the time to actually painstakingly go through all these and catalogue their responses, the point is just to use them to form a solid mental construct of the kind of person you wanna roll.
Feel free to share your characters and/or other resources you use.