Sharing assets

It depends on the requirement here.

Are you trying to share assets internally with your organization authors? - You can simply share published Asset URLs.

Or the need is to share assets externally? - You can use some portal like Asset Share Commons/Brand Portal (paid subscription).

Are these public assets or they need some kind of authorization before they become downloadable? - You would need to implement authorization on the website to restrict/show assets to authorized users only.