It's no surprise that this is a very quiet thread, and it's even rare to find gothic metal threads on forums these days. Personally I love the best bands in this genre and I will to the day I die.
There's obviously a bit of cross-over between gothic metal, doom metal, dark rock etc but some of my favourite bands and releases from the broader gothic metal genre:
Paradise Lost - Draconian Times
Type O Negative - October Rust
Theatre of Tragedy - Velvet Darkness They Fear
My Dying Bride - Like Gods of the Sun
Anathema - Alternative 4
Tristania - Widow's Weeds
Cradle of Filth - Dusk and Her Embrace
Moonspell - Irreligious
The 69 Eyes - Devils
Sentenced - The Cold White Light
To/Die/For - Epilogue
The 1990s were in particular an amazing era for me, being in my teens and just being amazed by all this great music. They're still some of my favourite albums to this day.