A Vedic Journey Through No-time: Chapter 5, Kali Yuga, The Age of Ignorance and Hope.

https://chopra.com/blogs/meditation/a-vedic-journey-through-no-time-chapter-5-kali-yuga-the-age-of-ignorance-and-hope 

'In this age of Kali, people who are endowed with sufficient intelligence will worship the Lord, who is accompanied by His associates, by performance of saṅkīrtana-yajña.' (SB 11.5.32) Other yajñas prescribed in the Vedic literatures are not easy to perform in this age of Kali, but the saṅkīrtana-yajña is easy and sublime for all purposes."

(Bhagavad-gītā As It Is 3.10, Purport)

"In this age the spiritual revolution was recommended by Lord Caitanya Mahaprabhu. He demonstrated that the Yuga Dharma for this age is the Sankirtan chanting of the holy names. If we want the degraded mass of people to be elevated, we must stop their sinful activity. To stop sinful activity one must purify the mind and the best process for purifying the mass mind is the chanting of the maha mantra Hare Krishna. This can be done in public where everyone has a chance to hear and be purified.

We experience that people are becoming more friendly and helping our movement in America simply because we are performing this sankirtan yajna. I hope you can understand this. This movement is authorized and confirmed by great acaryas as well as the sastras and also by Lord Caitanya Himself Who is the Supreme Personality of Godhead, non different from Krishna."

(Srila Prabhupada Letter, August 20, 1974)

https://prabhupadaconnect.com/Sankirtana-Yajna.html

“In this age of quarrel and hypocrisy the only means of deliverance is chanting the holy name of the Lord. There is no other way. There is no other way. There is no other way.” If the members of the Kṛṣṇa consciousness movement strictly follow this recommendation of Śrī Caitanya Mahāprabhu, their position will always be secure.

https://vedabase.io/en/library/sb/6/3/24/