Actually its very difficult these days with all these cameras, "CCTV", witnesses, etc
The only viable strategy is to live in the city and to go to low tech small towns to find victims
I don't think you realize how easy it is to get caught these days, just one slip up and that's it, and I'm not even talking about DNA evidence yet.
You get seen walking by an ATM camera, or your drivers license gets captured going down a specific road at a specific time, and now they can establish a timeline, and you better have alibi's as to why you were driving down that road around that time hours away from when a rape took place, and if they dig further and collect evidence of further instances of this for past rapes now they have a profile of you to present to a jury
Don't underestimage how easy it is to get caught, the only rapes that are hard to convict are ironically the rapes of women that you did publicly, for example you meet up with some chick at a bar, "roofy" her, fuck her at some cheap hotel or the bathroom, you can easily spin that as her being a bar, all the drunk ass witnesses will atest to both of you having a good time, take a few pics/vids of both of you partying, film you making her cum or something and her moaning, boom, out goes all her arguments
But raping random women I'm sure is the easiest thing to go to jail for in this modern world, its just too easy to track someones movements, heck they may not even need image evidence to show your timeline, they can use the signals sent to your phone to nearby cell towers, so you can't carry a phone with you either, there's so many variables to consider, so many ways it can go wrong
This should be a general rule, before you ever decide to rape, make your mind up and be fully prepared to kill yourself if caught, because if you go to jail a rapist, you will face 100 times more abuse than you could ever hope to inflict on a woman, and unlike you, her body is built for penetration, I won't ever rape unless I first resolve myself to a suicide pact