I have been thinking about it in terms of families, with suggested exemplars:
Hazes / Sativas: NL5 Haze C (Mango, SSH, Amnesia), Durban Poison
Fruity Hybrids: Blueberry
Afghani / NL lines: NL5
Chems: Chem 91
OGs: SFV OG (707 or CSI)
Kush / Hashplant lines: Kush × 88g13hp or NL2 × Puck
Skunks: UK Cheese
That gives two natural groups — one leaning more haze/fruit/uplift, the other more funk/fuel/kush. Could also mix them across groups for sharper contrast if someone wants to see differences side by side.
Would you add or change anything?