There have been several who have been purported to be enlightened and have developed significant followings. Some 20th century examples are Ramana Maharshi and Nisargadata Maharaj, both dead now. I am sure that many claim to be now and aren't and there are most likely some who are and are not telling.

Some who are alive now and worth looking into who have good things to pass along and may or may not be enlightened. How do you really determine if they are anyway??

Some who appear to have undergone some sort of transformation.
Eckhart Tolle??
Francis Lucille??
Jean Klein (deceased)
Gangaji????????
Papaji (deceased)
Robert Adams (deceased)
Lester Levinson (deceased)
Ramesh Balsekar???

If I had to pick one "individual" to read about and gain insight from it would be Ramana Maharshi. Do a search and see what you find.