Headliner and Round buyers usually need a different kind of accessory advice than Wayfarer buyers. Not because the core problems change, but because the fit and frame shape make it more important to separate safe transfers from frame-sensitive assumptions. The right first accessory is still the one that removes the biggest daily friction. The wrong first accessory is the one that only looks compatible on paper.
What still transfers well
SGG CHANNEL remains a strong first purchase if open-ear audio is the friction. SGG POD Meta is still the best buy if runtime is the real bottleneck. SGG GRIP, SGG HANG, and SGG VAULT also remain safer transfers because they solve fit, carry, and protection rather than relying on exact frame geometry.
Where to stay more cautious
Frame-sensitive light-control parts deserve a second look on Headliner and Round. That does not automatically mean they do not work. It means buyers should not assume that a result built around Wayfarer maps perfectly to every other Meta frame. This is exactly where overconfident accessory advice becomes expensive.
What to buy first
If the problem is still sound leakage, buy SGG CHANNEL. If the problem is runtime, buy SGG POD Meta. If the problem is the glasses coming off your face and having nowhere clean to go, buy SGG HANG or SGG VAULT. If the problem is still uncertain and you are trying to separate fit from shopping order, open the Compatibility Guide before buying frame-sensitive parts.