Here are some randomly selected joke topics beginning with the letter 'H'
Hot weather
Bill: Does this hot weather disagree with your mother?
Fred: It wouldn't dare!
Hot
Diner: Waiter, your thumb is in my chicken soup.
Waiter: That's all right sir, it's not very hot.
Hot dogs
How do you make a hot dog stand?
Take away its chair.
Hospitals
My friend just fell in love with the head nurse at the hospital where he is - I guess you can say that he's taken a turn for the nurse!
Hospitals
George: Is your father still in the hospital?
William: Yes. He's in the Expensive Care Unit.
Hot dogs
What type of dogs are always welcome at football games?
Hot dogs.
Hot stuff
Did you hear the story about the cup of coffee?
It's real hot stuff.
Hot dogs
What dog smells of onions?
A hot dog.
Hot dogs
What do cats like on their hot dogs?
Mouse-tard.