interested something

something interesting习惯表达
I'd better come up with something interesting to talk about.
我最好找些有趣的话题来谈。

something interesting 正确
interesting形容东西有趣
interested形容人对什么感兴趣

something interesting..有趣的东西

or

interested in something..对..感兴趣

something interersting

something interersting

something interesting 表示一些有趣的事情；
be interested in something 表示对...感兴趣