Dr Doom, in the comics, is Victor von Doom. He's a scientific genius with a penchant for sorcery and a desire for world domination. His complex personality and advanced technology make him a formidable foe.
Another great Dr Doom story is when he managed to steal the power of the Beyonder during the 'Secret Wars'. This made him one of the most powerful beings in the universe for a time. He used this power in his own megalomaniac ways, which led to some epic confrontations with other heroes. It was a story that really showed the extent of his ambition and his willingness to do whatever it takes to achieve his goals.
One of the best Dr Doom stories is 'Secret Wars'. In this story, Dr Doom manages to steal the power of the Beyonder. It shows his incredible ambition and intelligence as he outwits many powerful characters in the Marvel universe. He uses this newfound power in a very Doom - like way, trying to reshape the world according to his vision.
Tony Stark isn't Dr Doom. They have their own separate identities, backstories, and roles in the comic universe. Dr Doom is a powerful villain, while Tony Stark is the genius behind Iron Man.
There are quite a few Dr. Doom comics. It's hard to give an exact number as new ones are constantly being produced and old ones are re-released in different editions.