Im new to the game, who should I pull ?

I saw that miku is gonna get released in a few days and I was wondering what would be the best for my account between pulling for makoto yuki or pulling for miku (I have enough pulls to get one unit with the pity thingy).

My current team is ann, (a1) , kurotani, tomoko and yumi (a2).

Any help would be appreciated !!