In no particular order:
>Kayoko
Really fucking good. The seiyuu understands how to use the microphone and has exceptional control over her voice. This one is incredibly powerful because it's nearly an hour of Kayoko fussing over you. She walks with you in the rain while sharing an umbrella. She wipes you down, cleans your ears. Compared to other Blue Archive ASMRs, this one features a lot of sound effects. Things like the sound of her stroking your hair or little sighs and gasps. If you like that sort of thing, this is really up there. I've fallen asleep listening to the second track a few times.
>Kazusa
Exceptional. Spending an evening with Kazusa eating junk food while she blatantly hits on you for an hour. Another case of the seiyuu doing a great job using the microphone. Kazusa's voice has a certain timbre to it that comes out a lot when she gets close. Downside is there's a mouth sounds section which I personally find annoying. Lots of breathing next to your ear (this is a good thing). This one isn't good for sleeping.
>Swimsuit Miyako
Really leaning into fan art Miyako. An expansion of the events of her momotalks. She cannot keep her filthy rabbit hands off of you for the entire hour long run. Massage, inappropriately touching your crotch, pushing you down and getting on top of you, love confession (interrupted by Zeus), stripping naked. Lots of sound effects in this one. I like Miyako a lot, so this one is one of my favorites. If you don't like Miyako, you might just be annoyed. Not really good for sleeping.
>Onsen Shigure
Kawase Maki is my favorite seiyuu. Shigure saves your ass from the cold so the first part is her carrying you through the snow. Then she molests you in the onsen while you're blindfolded. She makes you a drink and gives you a massage. Then you sleep with her. It's more or less an extended version of her momotalks where Sensei doesn't do the gayest thing ever done in the history of humanity. Notably, the bonus tracks this time are incredibly intimate, but not in a sexual way. More of a sharing the moment kind of thing. Shigure's voice is just incredible. This one is pretty good for sleeping.
>Nonomi
As far as Blue Archive ASMR goes, this one is pretty basic. I like it because I think they did a good job writing Nonomi's character here. Nothing really notable happens, but she does clean your ears. Some people find that sound annoying.
>Noa, Yuuka, Hina, Himari
One thing I'm personally annoyed by is how many of the ASMRs are just "girl does office work with you" for 50 minutes. These are all "girl does office work with you". It's not interesting. It almost feels like a missed opportunity to me, actually. If you like these characters, buckle in for "coffee machine", "wheelchair motor", or, the perennial favorite "pen scratching on papers while girl randomly grunts". I know Yuuka's is considered the best and I don't really care. Recent ASMRs have shown that they can write much more fulfilling scenarios. "Should we have X spend some time with Sensei in a more personal way? Nah. Bring out the paperwork. She loves paperwork." I hate these. Good for sleeping though.
>Christmas Serina
One of my favorite students. Kind of a mixed bag ASMR though. Starts with you sick and Serina fawning over you. I really enjoyed that. Then it sort of abruptly teleports outside and you spend all of about eleven minutes talking to her in public which Iis quite jarring. In the final track, you spend Christmas with her at Schale. This last one is really good and actually pretty long. The bonus track is Christmas morning and she sings. Good if you like Serina, kind of boring content though. Could sleep to this.
>Shun, Onsen Chinatsu, Ui, Misaki, Tsubaki
I actually can't remember anything about these. Pretty sure there are two Shuns talking to you at the same time at one point.
>Miyu
Imagine being stuffed in a box with Mikuru from The Melancholy of Suzumiya Haruhi. Not good. Microphone peaks at least once.