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The latest in a long line of quality Accelerometer+Gyroscope 6-DOF IMUs from ST
Has well well-documented datasheet
Also has a machine-learning core
Adafruit:https://learn.adafruit.com/lsm6dsox-and-ism330dhc-6-dof-imu?view=all
Summary
LSM6DOSX is my favourite 6-axis IMU chip of all chips so far. Newer technology is implemented on this chip, and it is well-documented, the performance sounds promising
BNO055 breakout board is the most easy to use breakout board since it has on-board data processing. Make this board stand out in the non-Arduino/Raspberry Pi development scenario.
MPU6000, ICM 20602, and BMI270 are all good traditional chips