When I happened to see the ham population density map in the US, I was surprised the hams are distributed mainly in the mid to eastern part of the US. Of course, California is a densely populated area in the West Coast. But the relative population is accumulated in the first two parts. It may reflect the population density itself.
When we look for English speaking hams on the air in order to train and enjoy conversation on CW, we should work with either Western Europe or the above mentioned parts in the US. They are exactly in the areas where the signal should go over the north pole. As you may know, the polar path is tough for a small set up station. The long path to the Western Europe is exceptionally good in fall. It's opening is only for a limited time in fall. It is still an exception in terms of the path suitable for ragchewing.
So the newcomers who intend to brush up comversational CW in Japan should overcome the difficulty of the path to those areas as well as of the language barrier.
In my beginners days, I have had quite some old timers in VK/ZL as well as such as 9V land, who kindly did with me with much patience.One of such old timers was Harry G3ATH. He was a great bug user with beautiful CW. Though my memory might be idealized as the others might be, his CW, beautifully fluent, is still in my mind. It was when I had studied a bit of English at school and had obtained a bit of command of CW that he kindly talked to me often. Those QSOs with him have motivated me to enjoy such conversational QSO throughout my life.
Later, when I became a member of FOC in 1988, I accidentally knew he had been a member many years ago, possibly immediately after the WWII. Some G member got in touch with him and let me know he had retired and had done well in a countryside in UK. I wrote a letter to him. He was pleased to hear from me. We have set a schedule on 20m. He was using a tiny 2element beam then, so that the condition was not very favorable to us. It was difficult for me to copy all messages he sent to me. But I could understand he was excited to work with me again after a quarter century absence. We have tried further schedule for a few times. They ended in failure. And in several years from that event, I heard from a friend of mine in G land that he had passed away.
Without his kind patience, I won't bave been a conversational CW lover. i was lucky to have had such an elmer in young days. Unfortunately, there are less ragchewers in south north path areas from Japan nowadays. Such as John9V1VV is an exception. We should be courteous and thankful to him as always hi.