I think ARV have already found it.They are waiting on rock chip...

I think ARV have already found it.
They are waiting on rock chip samples which were expected in August (see ARV announcement - Quarterly Activities/Appendix 5B Cash Flow Report on 31/07/2023)
The following pictures show ARV tenements in relation to GRE/AZS/RDN/NOVO.
The second GRE announcement ( GRE:Further High-Grade Lithium Assays Reported At Osborne JV on 24/07/2023) was in the GRE?ARV JV tenement. These lithium assays are exactly where the Andover Intrusion is located on the GRE/ARV JV tenement.

If you look at the last picture below, this is where ARV soil anomalies are (rock chip samples expected in August). These soil anomalies are also from the area on ARV tenements where the Andover Intrusion is.
So ARV appear to have the best ground compared to GRE.
NOVO is also looking good, but they are not listing on ASX until 14 Sep for $0.20.
There is also some ground between NOVO and RDN that I cannot find much information about who has it.
I copied these pictures from J&J and Black Cat and from company announcements.

Hopefully ARV have some good Rock Chip assays to report.