Consider self-employment if you have the capital and something you're obsessed about to sell. That way, your job is on your terms. What you do is still ultimately out of your control because cold logic is your boss, but at least the decisions come from you. You'll probably end up working harder than you would for an employer, but when I'm working on a special interest, it doesn't feel like work. Self employment has a dignity about it that a mere job can't equal. But do your market research carefully and realistically - otherwise you'll probably end up working yourself into the ground for the privilege of losing your capital. And don't overlook the likelihood that you might need to work a lot with people. See if you can tailor that to be Aspie-friendly, e.g. by basing as much of the communication as possible in the written word rather than phone calls and face-to-face meetings. Real-life meetings are said to be everything in the business world, but if your product is worth buying, I doubt people will give a damn about that. And you can always employ a neurotypical PR worker.
Universities and similar public institutions in the UK pride themselves on equal opportunities, so declare your autism and ask them what jobs they've got. They'll probably be happy to pander to your special needs and use you as a statistic to crow about how politically correct they are.
Spotting things other people miss.....maybe a scrutineer? or one of those people who defuses UXBs (I doubt if they get pestered much while they're at work!). Frankly I don't like the look of most jobs - too much emphasis on flexibility (by which they often mean total obedience to their sudden whims). Possibly with an official diagnosis it might be possible to stay on benefit for quite a long time (in the UK) - I guess it'd be hard for them to stop your money if you were very picky about the kind of work you applied for. With a secure income behind you and lots of lovely spare time, you'd be free to look for something that really suited you, and to try out and reject anything that wasn't up to scratch. But that's only conjecture. Social security people can be very awkward.