There is no authentic Henan dialect. All kinds of Henan dialects are authentic.

There are two kinds of Henan dialect, Central Plains Mandarin and Jin dialect.

Zhongyuan mandarin area

Zhongyuan Mandarin consists of 15 pieces, including Yanhe, Xinghan, Xuhuai, Ryan, Luo Song, Lu Nan, Luo Xiang, Fu Shang, Xinbang, Fenhe, Guanzhong, Qinlong, Longzhong and South Xinjiang, among which Henan has Yanhe, Ryan and An. Its distribution in Henan Province is as follows:

1, Zhengzhou, Kaifeng, Kaifeng, fengqiu county, Xingyang, Xingyang, Weishi, lankao county, Quan Min, Qixian, Tongxu, zhongmou county, Xingyang, xinmi city, xinzheng city and Yanling.

2. Luo Song, Luoyang, Songxian, gongyi city, Dengfeng, yanshi city, mengzhou city, Mengjin, Yichuan, Xin 'an, Yiyang, Mianchi, Luoning, Sanmenxia, yima city, Luanchuan and Lushi counties.

3. Fan County and Taiqian County of Yanhe Film

4. Nanyang, Lushan, changge city, Linying, Yancheng, Xuchang, Xuchang, Pingdingshan, Wugang, Xiangcheng, Jiaxian, Yuzhou, Ruzhou, Ruyang, Baofeng, Yexian, Wuyang, Fangcheng, nanzhao county, Xixia, Xichuan and neixiang county.

5. Luo Xiang films Luohe, Xiangcheng, Fugou, Xihua, Zhoukou, Huaiyang, Shangshui, Shangcai, runan county, Zhumadian, Xiping, suiping county, Queshan, Zhengyang, Pingyu and Xincai.

6. Parallel Shangqiu City, Sui County, Taikang County, Ningling County, Zhecheng County, Yucheng County, Luyi County, Xiayi County, yongcheng city, dancheng and shenqiu county.

7. Xinbang film Xinyang City, Tongbai County, Xixian County, Huaibin County, luoshan county County, Huangchuan County, Guangshan County, Xinxian County, Shangcheng County and Gushi County.

Fenhe County, lingbao city City, Shaanxi Province.

9. Anxin movies tangyin county, Neihuang County, Huaxian County, Nanle County, qingfeng county, Xunxian County, Weihui City, Xinxiang County, Changyuan County and Yuanyang County.

Jin language area

Only Anyang City, Anyang County, Linzhou City, Hebi City, Qixian County, Xinxiang City, huixian city City, Huojia County, Weihui City, Jiaozuo City, Xiuwu County, wen county City, Wuzhi County, Aibo County, Qinyang City, Jiyuan City and other places in Henan Province have Jin Hanyin films, which are close to Taihang Mountain. After the city was built, a large number of immigrants from zhongmou county, Xingyang and other places poured into Hebi City, which is the only one of the five cities in northern Henan Province with an accent. The most obvious feature of the dialects in this area and the Central Plains Mandarin dialect is that they retain the entering tone in the Middle Ages, and generally have five tones: Yin Ping (such as "three"), rising tone (such as "people"), rising tone (such as "five" and "nine"), moral tone (such as "four") and entering tone (such as "one" and "six").

I hope this answer will help you a little.