Ramana Maharshi was the last amongst self realized souls who existed on mother earth. Maharshi Ramana left his mortal frame in 1950. The next to manifest on mother earth is Kalki avatar himself, a messiah savior of present times.
Even if Kalki avatar manifests now, would it be possible for him to render wisdom of self realization to entire mankind! Journey towards self realization is never covered that way. Journey of self realization is an inward journey towards the spirit, consciousness existing in our heart as soul atman. Indulging in pranayama (breathing exercise) one can reach the spirit itself.
Even though Maharshi Ramana does not exist physically in present times; one can always follow his teachings any given moment of life. There is no dearth of literature relating to Maharshi Ramana available in entire world. I myself duplicated path taken by Maharshi Ramana. The art of self enquiry, Neti (not this, not this) practiced by Ramana Maharshi is a sure shot method of reaching state of self realization in our lifetime.
In the entire history of mankind, not a single human being succeeded reaching state of self realization under a Guru, spiritual master. Journey of spirituality towards self realization is always covered indulging in jnana yoga that demands our contemplating on vital issues of life contained in sacred text of different religions of world. Mastering delicate art of contemplation is an absolute must, in absence of which one never gains anything on path of pure spirituality.
For indulging in contemplation we do not require a guru, spiritual master. The most a spiritual master could render was clarify queries of serious seekers and this is what Sri Ramakrishna Paramhansa did for Swami Vivekananda. The journey of spirituality was covered by Swami Vivekananda all alone but under preceptorship of Sri Ramakrishna Paramhansa.
Every single seeker on mother earth must indulge in spirituality via path of contemplation. Spiritually there was no other method to indulge in spirituality to reach state of self realization.
So-called spiritual teachers, preachers found in religious centres of India knew nothing about spirituality what to say of self realization. Without wasting our time any further we must develop willpower exhibited by Swami Vivekananda and indulge in contemplation all the time.