Well, that’s the range of sensors which ST has.
If you don’t see anything there suitable for your (unstated) application requirements, then you’ll obviously have to look elsewhere.
But, as @TDK said, we live in a 3D world - so any real gyro can only have 3 axes
PS:
You can combine an LSM6DSOX + LIS3MDL to give you 9 DOF; eg,
https://www.adafruit.com/product/4517
Other sensors, of course, can be used: Basics of 6DOF and 9DOF sensor fusion
PPS:
See also:
which refers to:
Design tip DT0058, Computing tilt measurement and tilt-compensated eCompass
Design tip DT0060, Exploiting the gyroscope to update tilt measurement and eCompass
A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.