Before putting a template in place, we need to know how we're going to use the template.
Using an example, the power "Charged Bolts" (from "Electrical Blast") is available to Blasters, Corruptors, and Defenders. It's likely that it will accept Blaster Archetype Sets for Blasters, Corruptor Archetype Sets for Corruptors, and Defender Archetype Sets for Defenders. If we list all three (as we would with normal sets) it's misleading since Blasters can't use the Corruptor and Defender sets, for instance.
Off the top of my head I can think of three general ways to handle this. I made an example page to illustrate on my
Sandbox.
Option 1: List all AT versions but put an "or" in between each pair so that it's clear it's a choice of the available options.
Option 2: Add a single listing as something like "Archetype-specific Archetype Sets".
Option 3: Add a separate section just for AOs, then list all three options there.
For options 1 and 3, I'd recommend templates like Guy suggested, {{Set Blaster Archetype}}. For option 2, I'd recommend a template like {{Set Archetype}}.