Shinku relies heavily on Charge reaction, not only for the energy regeneration for her Ultimate, but also to stack the massive ATK buff from passive.
That heavily limits her team comps, especially since she loses her buffs after switching out, so she's locked into Main on-field DPS role in any team. Her best Anima support is heavily hinted to be
Iroi when she comes out in the second half of v1.2, but here's the teams
Shinku can build before
Iroi release.
Shinku F2P Charge Team
Shinku,
Hathor,
Jiuyuan,
Zero
The standard Charge team, similar to
Chaos and
Chiz teams. With
Zero easily triggering one reaction easily with their skill, and Hathor triggering the other reaction, you can get both Blossom and Remora going for Charge to begin.
Note that
Skia is much worse alternative than
Hathor, since Remora (and therefore Charge) doesn't last long enough with him, but he's still a valid option with her.
Mint on other hand can replace
Jiuyuan.
Shinku Nanally Premium Team
Shinku,
Hathor,
Nanally,
Zero
Nanally's advantage over
Jiuyuan is how her passive synergizes with
Shinku. Blossom Buds by default shoot every 2 seconds, and
Nanally enables them to shoot every 1 second. This allows
Shinku to stack her passive much faster, reaching full stacks in single Blossom reaction.
At the same time, entire team fills their Ultimate energy pretty easily with when Nanally and Shinku paired together, allowing more burst.
Shinku Chaos Team
Shinku,
Hathor,
Chaos,
Nanally/
Jiuyuan
It's basically a
Chaos Charge team, but you pick
Shinku as the Cosmos character over
Zero.
Chaos requires field time to trigger Remora, but he's faster than
Nanally, and you need to save Esper Meter from
Shinku to use in tandem.
Chaos's own DPS will compensate for the longer rotation time, but you need to trigger Charge while
Shinku is active, not him. That's to stack her ATK buffs on her which is more DPS overall than
Chaos. Still not the ideal comp, but a valid one.