How do I assign custom title and other values to /page/ of archives


I am looking for efficient ways to add following information into archive pages i.e

custom title
custom description
custom h1 tag
and custom paragraph

I will be doing that to all or some pages of archives.

Is there any plugin available for something like that ?

or if I have to get this done, should I go for a plugin development or some small hardcoding / hack in theme file directly?

multiple ideas about how to do it efficiently are appreciated.

Thanks in advance!