I found a couple of old videos on youtube with some interesting ones.
On this video at Manchester Piccadilly from 09:10 to 09:24 you can hear her say an "Arriva Trans Pennine" service:
On this video at Manchester Piccadilly from 00:00 to 00:14 you can hear her say an "Arriva Trans Pennine" service:
Not any particularly rare ones but this is her at Bromley South (04:42 to 05:04) in 2004:
Again not any particularly rare ones but this is her at Herne Hill (00:06 to 00:28 and 02:14 to 02:38) in 2004:
This one at Gatwick Airport from 2008 shows her at 02:05 to 02:13 announcing the old Horsham to Tunbridge Wells service:
She has been around since 1997 so she certainly has lots of interesting ones that used to be heard. Just a shame there are such few recordings from back then. I regret not recording announcements earlier but of course it was more difficult back then before the smartphone era.
She was installed at Luton Airport Parkway in 1997 (but then subsequently removed in 2003 before bringing her back in 2011).
She was installed at Southeastern station in the Greater London (eg, Bromley South, Herne Hill, Lewisham, Orpington, etc) in 2001/2002 (but then subsequently removed in 2004/2005 before bringing her back in 2012/2013).
She was installed at Gatwick Airport / Leeds / London Bridge / Manchester Piccadilly in 2001 (but then Gatwick Airport subsequently removed her in 2012 before bringing her back in 2018).
Probably her rarest ones are old TOC names. I can not find a recording but i remember hearing her announce "Connex" in her early days. She said both Connex South Central and Connex South Eastern as "Connex" on its own.