Wood Elves

As with the other elven armies, I expected the Wood Elves to be much easier than they turned out. I really like the Circle of Orboros models (they're specific, though), but the rest was mostly searching for bits and pieces and hoping to find something good enough to replace the beautiful current models.
For even more options I recommend asrai.org threads linked at the bottom of the post.

A few comments first:
  • The models listed here are not perfect and many are not on the same level as the original ones (those are usually way older than the current GW range). I am not saying losing GW models won't be a pity, if anything this work is making me appreciate them even more. I am just saying that a solution exists. The important part is, the models are out there.
  • This is not only my work. I have used ideas and suggestions from various places and am very grateful for the collective wisdom of the internet communities.
  • In many cases I was unsure about the size of the models and was forced to go on guesswork only. I hope at least some of them will work.
  • When possible, I have tried to link to groups of models and larger units, if only to show multiple sculpts at once. Most of the companies sell the individual models as well, should that be preferred.
  • I am quite a chaotic person and may have overlooked something awesome. I usually try to link sites that offer greater number of useful models or the ones I know I have not exhausted, but searching around the linked models might yield even more fruit.
  • If you know about something useful not linked here, please let me know and I will add it. This is by no means an exhaustive list and can never be, but I would like to list as many possibilities as possible. 

CORE

Dryads

Reaper Saproling Warriors
Tale of War Dryads of Bezelay

Black Tree Design Entling (and more)
Foundry Tree Spirit Nymphs
Shadowforge Dryads (and more)

Glade Guard

Gamezone Veteran Archers (and more)
Thunderbolt Mountain Wood Elf Archer (and more and command)
Thunderbolt Mountain High Elf Archer (and more)
Reaper Vale Archers
Reaper Selwyn
Black Tree Design Elven Archers (and more)
Black Tree Design Elven Archers (and more)
Mirliton Wood Elf Archers (and command)
Reaper Lorielle
Red Box Edele of Aelfheim
Hordes Blighted Nyss Archers

Glade Riders

Mirliton Wood Elf Cavalry (and more)

Foundry Ranger Cavalry (and command)
Reaper Volendria

Eternal Guard

Thunderbolt Mountain Wood Elf Spearman (and more and command)
Thunderbolt Mountain High Elf Spearman (and more)
Mantic Elves Spearmen Regiment
Reaper Vale Longthorns
Reaper Oakhearth Warden

SPECIAL

Treekin

Raging Heroes Tree Warriors
Mantic Forest Shamblers
Mirliton Treeman
Enigma Miniatures Dryad Princess
Black Tree Design Redwood Treeman (and more)
Reaper Swamp Shambler
Scibor Treeman (and one more)

Deepwood Scouts

Reaper Elf Rangers
Thunderbolt Mountain Wood Elf Scout (and more)
Foundry Elf Adventurers
Reaper Alistrilee (also in Bones)
Reaper Arthrand (also in Bones)
Reaper Nienna (also in Bones)
Reaper Talathlan
Reaper Arthal Nightblade
Darksword Female Ranger

Wardancers

Reaper Deathseekers
Reaper Mi-Sher (also in Bones)
Reaper Anjanis
Hordes Tharn Bloodweavers
Gamezone Silvanus Hero with Swords
Freebooter Chicomeh/Matqueh (and more)
Gaspez Arts Elfi Selvaggi

Wildwood Rangers

Hordes Druids of Orboros
Mantic Elf Palace Guard

Sisters of the Thorn

Reaper Gwyneth Roanmane
Raging Heroes Blood Vestal Cavalry (on Kickstarter)
Maidenhead Miniatures Centyrs (many kinds)
Mantic Basilean Sisterhood Panther Lancers

Warhawk Riders

Mirliton Wood Elf Eagle Rider (and one more)

Wild Riders

Hordes Wolf Riders
Maidenhead Miniatures Centyrs (many kinds)
Wood Elf Noble (and some more)
Foundry Centaur Skirmishers (and more)
Hordes Raptors

RARE

Great Eagle

Gamezone Great Eagle (and more)
Reaper Giant Eagle
Shieldwolf Roc with Giant Stone
Shieldwolf Roc with Fishing Boat
Darksword Giant War Eagle
Gamezone Wind Rider (and more)

Treeman
Mierce Miniatures Oácyning
Creature Caster Treewalker
Reaper Spirit of the Forest (also in Bones)
Reaper Mossbeard
Ultraforge Treewoman
Ultraforge Treelord
Scibor Treeman
Otherworld Miniatures Treant
Black Scorpion Treeman

Waywatchers

Hordes Strider Rangers

Reaper Elf Rangers
Reaper Kiramor
Darksword Male Wood Elf Archer

MOUNTS

Forest Dragon

Reaper Blightfang (also in Bones)
Reaper Jabberwock (also in Bones)

Unicorn
Mirliton Wood Elf Shaman
Reaper Unicorn (also in Bones)
Reaper Unicorn

Great Stag

Mierce Miniatures Kernuor
Hordes Morvahna
Darksword Ancient Stag
Ax Faction Feral Lass (and more)

CHARACTERS

Glade Lord

Studio McVey Al-Raavia
Tale of War Lorian son of Bezelay
Hordes Morvahna
Hordes Blacklad Wayfarer
Hordes Lord of the Feast
Hordes Una the Falconer
Reaper Wood Elf King

Spellweaver

Darksword Wood Elf Goddess
Scibor Elf Mage
Reaper Autumn Bronzeleaf (also in Bones)
Valiant Tyanta
Guild of Harmony Phoenicia
Hordes Cassius and Wurmwood
Hordes Bradigus
Fenryll Druidess
Mantic Green Lady
Darksword Tam Lin

Shadow Dancer
Gamezone Silvanus Hero with Swords
Freebooter Tocatl
Reaper Mi-Sher (also in Bones)

Waystalker

Hordes Lylyth (and one more)

Studio McVey Ar-Fienel
Avatars of War Jade Guard
Reaper Kiramor
Darksword Male Wood Elf Archer
Freebooter Totol

Branchwraith
West Wind Dryad
Reaper Drys (also in Bones)
Reaper Lorelei

Blackball Games British Greenman

I also recommend Gamezone Sylvanus range, Raging Heroes Wood Elves, Hordes Circle Orboros range, Mantic Elf army, going through Darksword miniatures, Black Tree Design Wood Elf army, Mirliton Wood Elves, Maidenhead Miniatures Feral Elves, Red Box Games Elves, Freebooter Amazons and doing a search for elf on Reaper website.
Asrai.org also has a list of alternative character models that I recommend as well as an alternative treemen thread.