Can I have true multiple home pages?

First time poster and new user … my apologies if this has been asked and answered, but I couldn’t find it.

I’ve just started blogging for my professional association. Most of my posts will actually be additional information on the products and services we offer. I want to have each post available permanently, and I also want to maintain any associated comments and tags. I might also want to add a new post to one of these pages in the future.

I can almost get what I want with hierarchical pages except that I would lose the comments and would have to reenter the tags.

In an ideal world, I would be able to rearrange all my posts in a manner somewhat akin to the outline view in MS Word.

I’m not tied to my current theme. Are there themes that already have this built in? Is this something I could pay someone to set up for me?