"hope so much" is correct and usable in written English.
You can use it to emphasize a strong sense of hope in a situation. For example: "I hope so much that this job opportunity works out for me!".
So much hope, so much optimism.
"That's why I hope so much we're able to get a game at home.
There is so much hope, so much promise to be fulfilled.
"We had so much hope, so much faith, so much inspiration for the future," said Mr. Veretelny's wife, Svetlana.
"I hope so much that the chancellor is listening and somehow he gets some P.R. behind this," the woman said.
I hope so much that my healing husband can take part in the democratic process, and that I can help him do so.
"I was hoping so much to get the out, I just lost it for a second," Spiezio said.
"I think he had raised his hopes so much - probably out of proportion.
"I was hoping so much I was going to get a chance to play and not just watch Stan play.
Oh yes, I'm hoping so much that, realizing the price such an infamous deed would cost them, the masters of Tehran will, for once, come around to the voice of understandable interests and, thus to the voice of wisdom.
