here are the corrected versions. I could correct it better if this was a journal entry, which give me more options to give you corrections.
1 I don’t like stories that have unhappy endings.
2 Barbara works for a company that makes furniture.
3 The woman who lives in next door is a history teacher
4 Have you heard what they said?
5 What’s the name of the man whose car you borrowed?
6 He told me about his new job, that he enjoys it very much.
7 I don’t like people which are cruel to animals.