Upvote:2
I did a little research in that obscure source Wikipedia and found the family tree shows a few members surviving today.
https://en.wikipedia.org/wiki/Tokugawa_clan1
https://en.wikipedia.org/wiki/Yoshitomo_Tokugawa2
https://en.wikipedia.org/wiki/Tsunenari_Tokugawa3
https://www.google.com/search?q=tokugawa+family+today&oq=tokugaa+family&aqs=chrome.2.69i57j0l5.8638j0j4&sourceid=chrome&ie=UTF-84
I strongly suspect that the family has many more surviving branches that are not so closely related to the shoguns.