I'm not one to give spoilers, but the translation team quit I think so I'll at least say this. I bought through volume 5 on amazon, but haven't been able to buy the last just yet. Suffice it to say, the characters do A LOT of personal growth and by the end of volume 5, Michiru and Maya kiss. Idk if they end up together forever since I haven't gotten to read the last volume, but as far as I know, they've told each other how they feel. Sadly, it's in Japanese and idk if it'll ever be fully translated for others, but that's the way it goes with a lot of yuri. However, if you want the manga, just check out amazon.
I just finished reading the no. 6 on your list titled "ohana holoholo" and damnn.. pls tell me they end up together (/TДT)/ also thanks for the list! I've read almost every yuri so its nice to check if there's some good stuff I missed out! ٩(๑❛ᴗ❛๑)۶