Exactly! When I am cold messaging prospects, I link to 3 or so articles I think best fit what they would want, and I give a link to my blog as a whole for seeing my writing ability and such. You can tailor what you send and highlight specific experience, but no one is only interested in ONE topic and I think it’s silly to expect that of people.
I like writing about a whole host of topics! And like you, I find people more interesting when they have varied interests and topics.
I like to write about not having a niche because it does go against the normal advice and I want people to see you can be successful without niching down.