I recommend a brief look at the teachings of Rabbi Avraham Feld, and the work of Orthodox Scholar Yair Davidy, to see the Jewish perspective on this subject.
One researcher of Japanese descent named Arimasa Kubo, speaks of a particular group of Japanese people of the Shinto tradition, that not only share in their rituals and history many similarities with the ancient Hebrews, but recent DNA studies have revealed a peculiarity in their Y-Chromosomes that is shared with neither the Chinese or the Koreans, but rather it is shared with the ancient Hebrew people! In Japan, the Suwa-Taisha Shinto Shrine sits in front of a Mount Moriya (Mt. Moriah?), and these people, whos ancient ancestors allegedly came from the far west, perform a ritual sacrifice (now done in mock style but for over 70 generations a real boy and real animals were employed) where a father scales Mt. Moriya with his son (his only son), as led to do by the god of Moriya. The father then binds him to a large sacrificial wooden stake, and intends to sacrifice him in obedience to the god of Mt. Moriya, then a messenger from this god suddenly appears (in the form of a second priest) and tells the father figure, that because he has offered such a sacrifice, the son is to be spared, and that the god of Moriya would provide the sacrifice, and at that point 75 Deer are sacrificed.
Let it be noted that there were no Rams in that country, but also note that Deer are in fact Kosher. But why 75 Deer and not just one? Well it is conjectured by some that the number is borrowed from the ancient "Israelite" Passover sacrifice of Mt. Gerizim as performed by the Ephraimites in Samaria! When the House of Israel was located in that place, even up to modern times, they would offer exactly 75 sheep. They claimed it was a most ancient tradition. This one profound corresponding example does not even touch upon the amazing work that has been done in this area in recent decades.
Likewise, there are some people of Kashmir, in Northern India, that have among them a people who pass on an oral tradition that claims that originally their ancestors came from the very area that we now call Samaria/Israel. Some of their local land names are very similar to Hebrew names, and they also practice a yearly feast in the spring that is remarkably similar to the Passover where they eat nothing leavened for a whole week.
Then there is the Lemba tribe of South Africa. The Lemba people always claimed to be Israelites, but no one ever believed them because they are very dark skinned. It wasnt until very recently that some scientists, ready to absolve the controversy once and for all, went there to do DNA studies, and loand behold it turns out that in fact, they are of a mixed Hebrew heritage. They are of a Levitical stock that had originally settled in Yemen tens of centuries ago, and then eventually migrated there. They intermarried and eventually became acculturated but orally kept many of the legends.
The Yasufzai of Afghanistan also have some Israelite customs as well, and their name actually means, the children of Joseph! Their oral history likewise goes back thousands of years when they allegedly were led to and settled in this area. I suspect during the Assyrian captivity.
Then there are the Knanites, who allegedly speak and write a variation of ancient Aramaic, and their name means the people of Canaan, and then there are also the Chiang-Min and Kaifeng of China, and the tribe of Manashe who reside in Burma to this day (Manasseh?).
Well no doubt all of this is quite curious in light of this subject, but I believe many of the still lost of the House of Israel can be found among (and blended into) Europeans as well as others, having names such a Lewis and Meyers and more. But know this beloved, the Shofar is blowing
many, many, of the melo hagoyim (Genesis 49) are finding the fulfillment of their ancient faith in Messiah Yeshua this very day.
In His love
Paul