I do have models of the US Navy's Guppy class SS(K/G) which maybe included in the future.
Here is a photo of my full collection of subs I've made over the past month.
From Right to left
Song SS
Yuan SSK
Heroj SS
Sava SS
MG110 SSM
Ghadir SSM
P4 SSM
Nahong SSM
Yugo SSM
(2nd Row)
Una SSM
Attack Submercable SSM
Mala SDV