It would probably help if you mentioned what area you're staying in, as playing after midnight means the trains are done so unless you want to pay almost as much for the cab as the girl, you'll want to be within walking distance of your hotel.
That is why I favor the Kanda/Akihabara/Ueno region, where I can cover that entire area on foot in less than 30 minutes. After that, it basically comes down to how good your Japanese is. If you've got little to zero language skills, your best bet is probably a Thai massage joint and there are many of them very near Kanda Station and a couple more as you make your way toward Okachimachi. Thai girls will generally have the best English skills, while Koreans, Chinese and others will generally have none at all.
If you can speak the language, Korean akasuri scrubs with a nice HE can be had in the Okachimachi/Ueno area. Those are my favored spots as I very much enjoy being washed and exfoliated, and the Koreans will deliver your HE naked. I'm ethnically Japanese and speak the language decently so I'm generally let in wherever I go and my experience will differ from most, but as far as I can tell, Korean shops don't discriminate against foreigners if they can speak Japanese (or bonus for Korean).
If you really want to roll the dice, after about 9pm just troll around Kanda stations and look for the Taiwanese ladies in coats, standing around the station exits. They're very aggressive and may actually approach a gaijin, and are basically offering the usual upsell scam: 3k for a "massage," which turns out to be an absolute shitty waste of 15 minutes, followed by the upsell of a handjob for another 7k-8k, and that usually leads to the FS for another 10k on top of that. I've never actually bought more than the handjob, but I was drunk as fuck and believe me, those girls earned that 8k.
Once you become more of a seasoned Japan traveler you'll get better at coordinating your hotels with the corresponding P4P services you favor. But if you want to play it absolutely safe and guarantee you'll always be within walking distance of having your dick played with after hours, it might be best to just stay in Shinjuku.