Are both sentences OK? Today, everybody wishes for their own interests. /
Today, everybody only thinks about their own interests.

Question

Are both sentences OK? Today, everybody wishes for their own interests. /
Today, everybody only thinks about their own interests.

Answer

We wouldn’t say the first and the second could be more natural.

These days, people think only of themselves.
These days, people think only about their own interests.

Answer

The second sentence is better. We don't really use "wishes" like that.