Wah, first time got "called out" to ask opinion on Pams... Paiseh siah. Only got into Panerai about 1-2 years ago... I must have been talking too much...
Well, for what I know, the modern Luminor classics will be:
1. Pam 372: closest DNA to the 6152
2. Pam 000: cleanest (and also cheapest) Luminor - the quintessential Panerai
3. Pam 233 (dot version)
But my holy grail will be the Pam 127 (Fiddy).

The big daddy that shares the closest DNA to the 6152. So, from what I understand: 6152 > 127 > 372.
Not really into Radiomirs but the classic one that I know of would be the Pam 390, equivalent of the Luminor Pam 000.
Hope this helps!