雷 vs 雷聲 vs 雷鳴 for "thunder", which is most common?
打雷 is the best for describing action.
現在外面正在打雷 There's thunder outside right now

雷聲 is also good for describing what you hear
我剛被雷聲嚇到 I was surprised (shocked) by the sound of the thunder

雷 by itself means thunder, and used a little less often
but it also means bomb as in 地雷.
這家店有雷. This store is a bomb. (When joking to friends that this food store sucks and is like stepping on a bomb/mine)

You could say, 外面有雷 There is thunder outside
But it would sound awkward, the common phrase would be, 外面正在打雷