You asked
What camera should I buy instead of the ricoh gr iii?
If you want to stay with the Ricoh line, the GR II is the older sibling. It's an APS-C pocket compact announced in 2015 with a built-in flash that the GR III dropped, but it has no stabilisation. The GR III HDF is the GR III with a switchable highlight diffusion filter in place of the ND filter, so it only makes sense if you want that effect.
For something different, the Street page suggests the Fujifilm X100 series if you want lovely dials and a hybrid viewfinder, or a small mirrorless body with a pancake prime if you'd like the option of other lenses later. If you want something that fits in a jacket pocket and has a zoom, the first camera guide points to 1-inch sensor compacts such as the Sony RX100 series.
Written by Claude from this site's pages.