Board Thread:Questions and Answers/@comment-46311985-20200710054549/@comment-43782881-20200710065848

No lolis eliminates a small handful of mgs.

2. Chill-In the mg index, check the disposition index for a list of mgs described as gentle. Might be a bit muddled, the redcap violently rapes her chosen man but then becomes gentle as long as he manages her lust. The wurm is the exact opposite of chill but relatively unviolent. The gnome is my personal favorite. However, most of these listed mgs will fit some definition of chill.

More specifically you might look at zipangu mgs, most of which are much more self-controlled and less likely to attack someone, notable exceptions being the onis (red blue and ushi) and joro-gumo. The kraken is descibed as chill in its bio. I like to think of some of the "poor at expressing emotions" monster girls, from the same index, as being chill. Cyclops, golem/automaton, living armor, soldier beetle. White horn might fit? There's a few other dispositions like melancholic and lonely which might fit this criteria, you weren't very clear.

Motherly is a bit more specific, but I have a few ideas. I think white horn could fit this category. Echidna looks for a guy to raise from childhood so he can be strong enough to solve her challenges and marry her to have children with. She's like the ultimate mother. Dragon zombie is born out of a dragon's regrets at dying and not having children. Seeks out a man to have children with. Awesome mother, complete opposite of chill. Grizzly, mama bear? Troll? Hakutaku, perhaps? Unicorn? Shoggoth is a pretty nice fit. Eldritch monster, might not be chill enough.

Titania projects an aura of maturity and motherlyness but her thing is being  a fairy (all of whom are childish in nature) who puts on a face of maturity but is really just like a little girl acting like an adult among other little girls. Looks nothing like a loli but behaves in all the ways a loli would.

Then I said oh wait get your buddy a holstaur. She passes all three criteria with flying colors.