Official package search website for rocky linux?

You can also use dnf for that:

dnf search <package>

you may wish to play around with package name to find what you want, but that is no different than using pkgs.org.

Some examples:

dnf search http
dnf list http*

The first doesn’t need asterisks to find if any other characters follow the name, eg: httpd. The second will only search for an exact phrase, so the asterisk is needed if unsure. Either before or after, eg: dnf list *http*

That will only search for repos that are enabled, so pkgs.org is actually better since the above will not work if a certain repo is disabled that hosts the particular package.