I nominate Alex Cavalli's LL2 on the account that there are not that many stat amps, the Electra is no longer being made, and the BH takes years to deliver, and everything else is DIY.

Sony DR-Z7, Pioneer Monitor 10-II, and Sennheiser HD250 Linear II should all be added to vintage.

But perhaps you can make that decision yourself, if you don't mind doing some measurements 

I nominate K7XX or K712? Warmer than K701, maybe rougher in the mid-treble. But same good qualities - articulate and resolving as K701. Just better tonally - not cold and analytical.

I disliked the masking on K712: you can still hear the crisp treble under the midbass. It could be OK at the Massdrop price, not otherwise though.

Sent the K7XX my way, and I'll let you know what I think.

I have a few I think belong to the list, perhaps more so than some of the others I saw.

Ortho / Stat

Stax SR-407 with 507 pads (exact same sound as SR-507) - Baby SR-009 but not as refined, not as textured, not as good soundstage, but good enough to kick most dynamic headphones ass in the same price range, specially if ordering directly from Japan or used market. Comfort with Lambdas can be an issue.

Code X - Super rare modded HE-5 - One of the best orthos on the market, need powerful amp

In-ears

JVC FXD70 -  V shaped with somewhat thin mids mids, great treble detail and timbre, exciting sound. This 30 USD little thing made out of machine drilled stainless steel has turned a grown man crying on more than one occasion. That is the best grade I can give to an audio product. Excels with instruments and likes a bit of EQ to the mids. 
Best value I know. Much better than say a CAL!. Rather listen to this than any TWFK by a mile. It can both rock you out and play sensitive violin passages.

T Peos Altone 200 - Mild V shaped hybrid with great clarity and detail for it's asking price. Good quality bass. Still that TWFK sound but the added dynamic bass driver helps out in giving it a more well rounded music experience. Great value.

Dita The Answer (non truth version) - Great balance, perhaps slightly U shaped, good all-rounder, offer good value compared to the uber-expensive universals like K3003.

Amps

Yamaha CR-620 - Great power, clarity, sense of realism and smoothness. Bass is boomy unless you recap it.  Much prefer this over the Schiit Vali with my HD800, or when I think of it anything under 1000.