i was in Tokyo and managed to try 2 online agencies. The 1st one was An Independence, (https://en.hi-na.com/cast/) Hibiki was the boy's name. Strg boy with a very nice bod ! It was an outcall, and he arrived on time. He showered and came out naked with a hardon ! nice cock. mananaged to have some oral with him but no anal. very cute boy.
2nd one was with https://chance-shinjuku.jp/cast/ryusei/, very cute boy from okinawa. again they are very punctual and will go thru the motion of showering etc... This boy would do oral with tongue and bj. you probably can do anal with him too. Problem with his popular boy he had 3 clients that day hence he will not shoot.
Both boys looked pretty close to their photos online. sometimes from my experience when they arrive they dont look like their photo. Probably touched up.
Apart from the above, i did try TokyoKids sometime back and had great experience. There was another site that i tried cant remember the name but ordered a very cute boy unfortunately he was pretty cold fish in bed. So all depends on your luck !