Updating the list with *
God Tier (Near God-Tier standards + all of them fully throated the biggest dicks in JAV with ease):
Azusa Hagi, Hana Kanno, Hikaru Yukino, Yuuno Hoshi
Near God-Tier (Very consistent deepthroating, varied technique, and deep in mouth finishes):
Akari Asagiri, Aki Kawana, Aki Sasaki, An Mizuki, Anri Saya, Ayuhara Itsuki, Azumi Mizushima, Azusa Nagasawa, Hikari Hino, June Lovejoy, Miki Sunohara, Minami Ayase, Nozomi Ichinohe, Reiko Sawamura, Reiko Nakamori, Ririka, Rina Fukuda, Saaya Haduki, Tsubomi, Yuka Osawa, Yuki Maeda, *Yumika Saeki
Top Tier (Fairly Consistent deepthroating, technique, and deep in mouth finishes. Potential to move higher is there for some but maybe not enough material):
Ai Uehara, Aino, *Akane Shiiki, Akari Aramura, Arisa Hanyu, Akari Hoshino, Akari Mitani, Akari Shiomi, Anju Kaise, Arisa Hanyuu, *Arisa Seina, Aya Ibuki, Aya Miyazaki, Aya Mitsuki, *Ayaka Mochizuki, Ayane Sesaki, Ayane Suzukawa, Azusa Misaki, Chigusa Hara, Chino Azumi, Chitose Saegusa, Ema Kisaki, Emi Fukuda, Eri Natsume, Fujiko Minegushi, *Haruka, Haruka Akane, Haruka Ayane, Haruka Takami, *Himari Ogawa, Hina Nanase, Honoka Mihara, Honoka Takigawa, Honoka Yonekura, Hotaru Mori, Ichika Kamihata, Ichika Kuroki, Ikumi Kuroki, Kaede Niiyama, Kaho Shibuya, Kanade Tsuchiya, Kanna Shinozaki, *Kasumi Hanasaki, Kasumi Oosawa, Kiritani Matsuri, *Kotona Hirakawa, Kurumi Tamaki, *Kyoko Maki, Maino Itsuki, Mao Hamasaki, Mao Kurata, *Mari Kagami, Mari Takasugi, Marina Isshiki, Marina Matsumoto, Megumi Shino, *Mei Satsuki, Mihara Honoka, Mihina Nagai, Miho Ashina, *Miina Wakatsuki, Miori Ayaha, Mikan Kururugi, Minako Kirishima, Mirei Morishita, Mirei Shiratori, *Misa Arisawa, Misato Nonomiya, Miwako Yamamoto, Moe Sakurai, Moe Ona, Momoka Katou, *Nana Maeno, Nananmi Kawakami, Nao Kiritani, Nao Mizuki, Nao Wakana, Natsuki Minami, Nozomi Arimura, Nozomi Hatsuki, Nozomi Tanihara, Reira Hazuki, Renon Kanae, Ria Sakuragi, *Riho Fujimori, Rika Aimi, Riko Mayama, *Riko Shinohara, Riku Minato, Rinne Touka, Rino Kirishima, Risa Onodera, Risa Murakami, Rui Hizuki, Runa Suzumori, Ryoko Hirosaki, Ryoko Murakami, Saiko Yatsuhashi, Sakura Kirishima, Sana Matsunaga, Sayaka Aishiro, Shiho Egami, Shiori Kamisaki, Shiori Mochida, *Sumire Niwa, Suzu Yamai, Tia, Tsumugi Serizawa, Yua Saiki, Yui Kawagoe, Yuko Kitagawa, Yuma Asami, Yumi Kazama, Yuri Honma, Yuria Satomi, *Yuria Yoshine, Yurie Matsushima, Yurina Ayashiro, Yuu Kawakami, Yuu Shinoda, *Yuuri Asada, Yuuri Maina, Yuzu Kitagawa
High-Mid Tier (Not consistent enough for Top Tier):
Ai Takasaka, *Aina Shinkawa, Anri Okita, Ayumi Shinoda, Erika Kitagawa, Hibiki Ohtsuki, Hikaru Harukaze, Himeri Oosaki, *Honoka Tsuji, Ichika Kamihata, Jin Yuki, *Karen Yuzuriha, Kasumi Tsukino, Meguri, Miho Tsuno, Miyuu Amano, Nana Usami, Nanami Matsumoto, Nao Jinguuji, *Nene Tanaka, *Rena Aoi, Rika Mari, *Rika Tsubaki, Riko Honda, Serina Hayakawa, Shien Fujimoto, Sho Nishino, Tsubasa Hachino, *Yayoi Mizuki, Yui Hatano, Yuuna Himekawa
Mid Tier (Lacking a combination of deepthroating ability, technique, and deep in mouth finishes):
Ai Hoshina, Ai Sayama, Akane Yoshinaga, Aoi Kururugi, Aimi Yoshikawa, Anna Morikawa, Ayaka Tomoda, Ayumi Kimito, Chinami Sakura, *Hana Himesaki, Haruki Sato, Haruna Ayane, *Hikari Semei, Iori Kogawa, *Julia, Kaho Imai, Kaho Kasumi, Kurea Hasumi, Maki Hojo, Mako Oda, Mikako Abe, Minori Kawana, Mio Kirishima, Nene Sakura, Noa Eikawa, Reiko Kobayakawa, Rina Nishimura, Ruka Kanae, Sakura Kizuna
Low Tier (Low effort all around. Usually relies on other skills or looks):
Aika, Aoi Mitsushima, Asahi Mizuno, Ayu Sakurai, *Inaba Ruka, Karen Uehara, Mana Izumi, Misaki Honda, Mei Matsumoto, Misuzu Kawana, Naomi, *Ranka, Rena Fukiishi, Ruri Tachibana, Sara Saijo, Sora Shina