Didn't see it posted yet. Found a Noble's Estoc. Same move set as the estoc but appears slightly shorter. 3.5 weight. Req 9 str & 10 Dex. Says "Daubed with gold from tip to tail, it should fetch a good sum" I think it was a loot drop and not a designated pick up. Cheers!

you can get rogier's keen rapier from him when he's at the roundtable

You get Rogiers Rapier +8 if you talk to him after killing Godwyn at the Table of Lost Grace

The Estoc is still the Bestoc

Found the Bloody Helice thrusting sword. Its inside the chest past the boss room in the Writheblood Ruins. You can find this place by following the road after the Road of Iniquity Side Path site of grace. Its near the windmill village site of grace.

Anyone know if the spiral rapier from the Second Church of Marika is in the game?

Why is Frozen Needle listed as best while Noble's Estoc has more dmg, same ash of war, easier upgrade (ordinary stones) and betted scaling?

I found another rapier-like weapon. It's called "Great épée".
I'm sorry but I don't know where I found it. May be a loot from a mob, but I don't recall enemies using rapiers. Maybe red-hooded guards from Stormveil ?
I can tell it's def. in Limgrave or in Stormveil castle. Except for a couple of random teleports, I've never ventured out of the main area, I'm still lvl 27.
I still cannot use it since my build is Dex/Int and it requires STR 15 [D]
(I have STR 13, and growing it just to use this weapon) and DEX 16 [D]
Impaling Thrust; 124 base dmg + 49 on my DEX 18
My Estoc +4: 131 + 24
All things considered, this looks just better on paper.
I suppose we'll see.

Using this with the “Blood Tax” ash of war and Hoslow’s Set (minus the helmet) for my vampire noble RP build :D