To display specific post at Category page

in general, at category page, it will show list of posts under that category.
like abc.com/category/test1/ show the post under test1.

is it possible to show the specific post at each category page?
eg.

if user access test 1 category, show “test1.html”
or test 2 category, show “test2.html”

or better to use redirection??

Thank you very much for help!