I’ll try and minimize personal info in this post so that it’s harder to dox me. I am a cishet white man without any romantic experience who is interested in trying online dating. I know that resources about doing this exist, but I don’t know how to find them without getting PUA or other harmful advice mixed in.
What do I need to know/do/have before I try this?
Which apps should I use?
Are there guides that give relatively simple information on how to avoid harmful situations with online and not online dating?
Thanks for the advice 
pretty much all the medical, social, and financial barriers between me and a date are also in the way of any connection with anyone.
I’m sorry to hear that. I didn’t mean to make light of the difficulty with connecting with people. It’s hard at the best of times, and only gets harder as you add barriers and complications. I just want to encourage people to try, because often the main barrier is that it’s anxiety-provoking, which is a barrier that can often be overcome. Obviously it’s not the only barrier.