第一、闲聊八卦或者传播谣言，都可以用Gossip

八卦就是Gossip. It means a trivial chat among friends.

I enjoy gossiping with my friends. 我喜欢和朋友们瞎聊。

八卦这个词也含有贬义，就是传播谣言，Gossip can also mean spreading rumors.

第二、八卦媒体用Tabloid

另外一个和八卦有关的词———八卦杂志、小报儿，怎么说？

Those are called tabloids. In America, tabloids usually refer to media that follow celebrity scandals.

Tabloid 就是专门报道名人丑闻的八卦媒体。

所以Tabloid magazines是指八卦杂志， Tabloid web site是指八卦网站。

第三、狗仔队用Paparazzi

狗仔队是Paparazzi, It's in plural form(是复数名词) .

The local paparazzi are following this movie star everywhere.

当地的狗仔队四处跟踪这个电影明星。