한국어 말하기를 연습하고 싶습니다. 도와주실분 계신가요?
This says "I want to practice Korean. Is there anyone who will help me?"
You could alternatively say
한국어 말하기를 연습해야 되는데 도와주실분 계시나요?
"I must practice speaking Korean, is there anyone who will help me?"
or something, but this seems less natural to me