Pika

Title: Hakumei to Mikochi

Author: Kashiki Takuto

Artist: Kashiki Takuto

Group: #EverydayHeroes Scans

Estimated Reading Time: 3 hour-ish

Pitch: Great scenery and characters, well made world building

Status: Ongoing

Title: Somali to mori no Kamisama

Author: GUREISHI Yako

Artist: GUREISHI Yako

Group: Dumbnut

Estimated Reading Time: 2 hour-ish

Pitch: Great scenery, characters, world building and art, plus it's really cute to boot

Status: Ongoing

Oh boy, only shorts and one-shots? This is pretty hard...

Title: Atom the Beginning

Author: Tezuka Makoto & Yuuki Masami

Artist: Kasahara Tetsuro

Group: Golden Roze & You're Welcome Scans

Estimated Reading Time: Currently 3rd volume done, so about 1 hour?

Pitch: Sci-fi + Slice of life + likable characters 

Status: ongoing

Title: Arte

Author: Ookubo Kei

Artist: Ookubo Kei

Group: No Group (user: straweve)

Estimated Reading Time: 

Pitch: Slice of Life, about a girl in 16th century aspiring to be an artist, her positive vibes gives you some motivation 

Status: Ongoing

Title:  Back Alley Life

Author: Kuchinashi

Artist: Kuchinashi

Group: amplified & nehnehneji

Estimated Reading Time: < 1 hour ?

Pitch: Cuuuuuuuttteeeee

Status: Ongoing

Title: Dansan Joshi

Author: Mizu Asato

Artist: Mizu Asato

Group: No Group 

Estimated Reading Time: about 1.5 hour? a lot longer if you include taking a break for laughter

Pitch: Nothing cheers you up like some hectic comedy

Status: Ongoing

Title: Debusen

Author: Ando Yuma

Artist: Asaki Masashi

Group: No Group (user: qAlt49yU)

Estimated Reading Time: < 3 hours

Pitch: Reaalllly good comedy

Status: complete

Title: Watashitachi no Shiawase na Jikan

Author: GONG Ji-Young & SAHARA Mizu

Artist: SAHARA Mizu

Group: Storm in Heaven & Psycho Pandas

Estimated Reading Time: < 1 hour

Pitch: The feels, just like Three Days of Happiness jist like Metroxylon explained

Status: Completed

Title: The Duke of Death and His Black Maid

Author: Inoue Koharu

Artist: Inoue Koharu

Group:  Kirei Cake

Estimated Reading Time: < 1 hour

Pitch: Cute romance with a depressed bocchan and a cute, sexy maid

Status: Ongoing

Title: Aqua

Author: AMANO Kozue

Artist: AMANO Kozue

Group: MangaONE

Estimated Reading Time: < 1 hour

Pitch: Really good slice of life to soothe your heart 

Status: Completed

Title: Aria

Author: AMANO Kozue

Artist: AMANO Kozue

Group: MangaONE

Estimated Reading Time: 4 hours?

Pitch: Sequel of Aqua and it's even better!

Status: Completed

Title: Daidai wa, Hantoumei ni Nidone Suru

Author: ABE Youichi

Artist: ABE Youichi

Group: #EverydayHeroes Scans

Estimated Reading Time: < 2 hours?

Pitch: Quirky comedy with specks of horror elements

Status: Completed

Title: Hideout

Author: Kakizaki Masasumi

Artist: Kakizaki Masasumi

Group: Kotonoha

Estimated Reading Time: 1.5 hour?

Pitch: Suspense thriller that makes you root for the protagonist (maybe in a bad way?) 

Status: Completed

Title: Magi no Okurimono

Author: YOSHIZUKI Kumichi

Artist: YOSHIZUKI Kumichi

Group: Easy Going Scans & One Snowshoe

Estimated Reading Time: < 1 hour

Pitch: Heartbreaking yet hope-giving like Three Days of Happiness

Status: Completed

Title: Senyuu. (the web comic and the manga)

Author: Haruhara Robinson

Artist: Haruhara Robinson

Group: BattleBrave (web comic), Soldier Hero (manga)

Estimated Reading Time: 2~3 hours for the web comic and < 2 hours for the manga

Pitch: Slapstick comedy to cheer you up like no other can do

Status: manga is complete, but web manga is ongoing

I wish to add more, but they are either ongoing or not short T^T

Edit: Forgot a link

You can read it in nico nico douga though (raw).

Edit: My bad, you can't link raws (forgot about the rules), but here is the official title もんれす -異種格闘モンスター娘-

1. Ore ga Mahou o Kakete Yaru

2. 未完成ベイビーズ uhhm if I can read correctly it's "Mikansei babies" (Incomplete babies?)

3. I think it should be "Blue Heidi" (buruu haiji)

4. I can't seem to find it even searching by author

5. まる三角しかく (Maru sankaku shikaku)

6. スキ キライ 好き。(suki kirai suki./ like hate like?) 

The sites doesn't seem to provide the Japanese titles, they are all in Chinese.

Kemono Jihen?

Btw batoto is about to close down permanently, see the forums for more details T^T