"excessively dramatic and Romantic black metal style".
Already mentioned several times, and rightfully so, but Avzhia's The Key of Throne
is the purest (and best) statement of this style. Not to put it above In the Nightside Eclipse
(although personally I listen to it more often), but the latter has other elements as well that also make it great. The Avzhia album is *only* "excessively dramatic and romantic."
For Graveland, I would put Following the Voice of Blood
and Memory and Destiny
closest to the style you're asking for, although neither is his best work - close to it, though.
Behemoth's ...From the Pagan Vastlands
demo fits in the niche as well. So does And the Forests Dream Eternally
, although the cheese starts to outweigh the good - not terribly so, but enough to make it somewhat less good than the former.
Aeternus' Beyond the Wandering Moon
is good. Goes on too long for its own good, and is amateurish in parts, but sincere enough that you don't mind. After that they got steadily worse.
is good, but it only really has two standout tracks, the rest being merely OK.
Blazemth was a nice surprise for me, despite being some of the cheapest-sounding music I've heard.
Summoning fits the bill somewhat. Their music tends to be more harmonically- than melodically-focused, which makes it more ambient than dramatic at (many) times. I'd say Stronghold
comes closest to capturing this style, but it's far from their best.
Blut Aus Nord's Ultima Thulee
has a lot of this style in it as well, and is good. Everything else of theirs is best left avoided, though; the second album maintains the debut's style but loses its substance, and after that they just gave up and tacked on industrialist experimentation.
I wouldn't include the mentioned Abigor albums - they're all very good, but more in the vein of Mozart than Beethoven, whereas you're asking for Romantic stuff(additionally, I found the Lux Devicta Est
demo to be their best work). Same goes for Sammath.