I'm looking for something ~67g with a rounder tactility.
This should be relatively easy.
Isn't the Durock T1 basically the definition of a 67 G Zealio V2 with rounder tactility? Same with the Holy Panda and variants, although a minority says it is sharper than Zealio V2.
Those are your top two candidates.
Then there's the new U4T Boba. It's meant to be rounder than Zealio V2, it uses a 'D' shaped bump that takes up most of the stroke. So I wouldn't call it sharp.
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There's variants:
Holy Boba-I find that a 68 G Spirit Progressive spring makes for a nice Holy Panda / Holy Boba. Put a Halo or Polia stem in a Boba housing, 68P spring, lube stem with 3204 [not the legs] and you should get a gentle, progressive and fairly rounded Holy Boba.
A 63.5 G spring will give you a snappier, more Ergo-Clear-like tactility.
T1-You can put MX Clear stems, or even MX Brown stems in a T1 housing to get a snappier, sharper, but still somewhat-rounded Ergo Clear type switch at 65-67 G.
-There's an official derivative of the T1 switch called the Midnight switch, which is a Durock Medium Tactile (RARA) stem in a T1 housing. From factory. Weight is 67 G.
It's less-tactile than the T1 or Zealio V2 but still very snappy, maybe a little less-rounded than it could be because of the poppiness.
U4TU4T tactility should decrease a little at higher spring weights like 67-68 but still have heft behind it. You can lube the stem a little and contact surfaces if it is too sharp initially - it's possible to make it a little more rounded via lube.
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AlternativesThere's a kind of 'lesser Panda' switch called the AKKO CS Ocean Blue that is a fairly rounded tactility, if memory serves. It's lighter than the 67 G weight, I think, although I could be wrong. I remember it being non-sharp in feel. Very cheap from AKKO store.
[I think there's a purple variant that may be a bit heavier.]
The stock Kailh Polia switch uses a Halo stem probably around 63-65 G, people describe it as a gentle medium tactile.
Don't get SP Star Meteor for your purposes - it's a refined MX Brown. But the above switches are closer to what you want.