All of the Myth girls have built up enough of a hardcore fanbase of at least a few hundred to a few thousand supersimps who would follow them everywhere after Hololive and would continue to fund them to at least "comfortable middle class" / "doesn't have to get an actual job besides streaming/content creation to survive" level. It might not be Hololive-levels six figure annual incomes anymore, there will certainly be a drop-off more or less, but if they are somewhat frugal and not totally retarded with their money and amassed tons of debt they have to service, they can still live and coast along on their residual popularity even if they "just" make middle five-figures annually, and don't have to get an actual dayjob anymore.
As for realistic exit plans...
>Ina
Most secure, was already an established professional artist before. Can just go back to drawing gacha and LN illustrations from her nerd cave for good cash. In fact, she still already is and never completely stopped, and given we already had the cautionary tale of Sana, it's not surprising that for many people she feels the closest to exiting or at least soft/semi-graduating, given her apparent non-Holo priorities.
>Mori
Would try to go all out promoting her roommate music career, now being finally free of the corpo-straightjacket character of "Mori Calliope" that she chafes at so much. Sure, without the Hololive brand buff, her roommate has much less commercial value, but for better or worse she's been working on trying to make connections, establish her RM in the scene with albums/concerts/merch etc, and siphon fans away to her RM so she has enough to fall back on if/when she exits. Sure, she probably won't be able to achieve mainstream success, being a niche artist in a niche genre, but (see above) she probably has enough hardcore supersimps to at least survive comfortably. Also, for better or worse, her moves to ingratiate herself with the twitch cliques could help her when she tries to transition over to being an irl eceleb streamer herself (though it's debatable how much value she will have to the twitch cliques when she's not Mori the 2mil Hololive talent anymore, and "just" her roommate with much less clout, I wouldn't be surprised if her new "friends" just drop her again).
>Ame
Would probably just try to go back streaming on twitch like before, just with a higher viewcount now that she has the residual popularity buff of being an ex-Hololive talent. She has some connections to twitch cliques with people like Silver etc., maybe she would try to leverage that again. Some people have even suggested she would try to become a manager or set up her own vtuber agency or studio, based on how much she likes to do support work behind the scenes. But based on how she also seems quick to drop projects when she gets bored or burned out, I don't see her doing an actual professional management job seriously for too long.
>Gura
Her fanbase is so massive that even if just a tenth of her viewers continue to follow her, she won't be hurting and will be able to live comfortably no matter where she goes / what she does. Her only enemy is herself. Without the corpo giving her structure there is the danger that she could just regress to her aimless pre-Holo state with little output. A few drunken streams, and a 30 second meme song every three months or so. Sure, they might go viral, but you can't really "eat" (monetize) viral clips. If she has grown enough to avoid being directionless and give herself structure, she can continue being a powerhouse. Or well, if you're less charitable, she's arguably already kinda directionless now even with the corpo structure.
>Kiara
Given that she already manages to be a good SC earner even with a comparatively smaller fanbase, it shows how devoted her fans are. And like for every other Myth, enough people would continue to follow her that she'll be able to at least survive decently without having to actually "work" ever again. As for what she will actually DO, her interests (idol activities and cosplay) do have a physical "time limit" (i.e. being dependant on youth and beauty, at some point you're simply just "too old" for it) that she is approaching or has already passed. Which she realizes and is not going to actually try to seriously break into that shithole industry again that disillusioned her before. So for the long run, if she wants to continue streaming, it's probably gonna be either with a vtuber avatar, and/or some more relaxed content like travel vlogging or something, idk.
Someone who knows more about Council can give an individual estimation for each of them.
