My impressions of the last two:
Reverse Coco: Yeah, it's very clear what they were talking about with Clara as the "bridge" between EN and JP. Very great singing voice, very enjoyable streaming experience, 2nd favorite normal voice (behind Yuu), favorite choice of games so far. Never watched Beryl before but I get why people wanted her so much. I'm also a sucker for the bunnygirl outfit. Likely watch
Snakes on a Phase: Definite mic issues, it did seem to get better later on. I assume she just had the mic too close to her face for the most part. Great singing voice. I vibe with the personality, feels a bit familiar to Erina's streams. I don't recall seeing a stream schedule so no clue on that one. Got the sense that she was an experienced stream but obvious nerves popped up a bit. Likely watch
So after everything, in terms of my personal interest:
Clara > Yuu*= Pico = Loki** >>>>>>Memory
* becomes sole 2nd or tied for 1st if she finds better game choices