hi is there any music similar to type o negative or is gothic metal

as far as gothic metal goes I really got into Paradise Lost over the last few years. Even though they're the same sub-genre I wouldn't say they're particularly similar to Type-O, but they do have some excellent music. Some of it is more death metal (especially the early stuff) but they also have a number of albums with not death metal style vocals at all. perhaps try the song Ghost, or Faith Divides us, Death Unites Us, and maybe Enchantment.

otherwise Tristania is also a great Gothic metal band as well, even though again, the style is actually pretty different, the best song to see if you'd like them would probably be Angina, it kind of has a little bit of everything they do 

draconian times and icon by paradise lost and ashen by shadowgarden, are honestly the only gothic metal albums i've heard that are similar to type o negative, but if you don't mind a bit of a mixture of death doom metal, heres some albums i recommend 

the dreadful hours - my dying bride

lake of sorrow - the sins of thy beloved

theatre of tragedy - theatre of tragedy 

intrinsic trip by despairs tiny things (really lo-fi demo from 1997, can be found on youtube :) )

nice point with MY Dying Bride, I'm not sure why I didn't think of them. Personally I've always had a soft spot for Songs of Darkness, Words of Light, but then again, that was the first of their albums I heard