Hentai Sites review
Hentai Sites is a directory of adult animation and illustrated media. Its streaming and video-on-demand lists give me two different places to begin. I'd choose based on whether I wanted a quick look at a provider or was searching for a particular release.
Choose the list by how you want to browse
The directory puts streaming sites and video-on-demand stores on separate pages. I'd start with streaming for a shortlist of video catalogs. For a particular release, I'd use the VOD page to find a store and check the title there. MangaDex is a different starting point when I want chapters and language choices in a manga reader.
Open a provider before relying on the listing
The category pages show entries with their own descriptions and links. I can use that to get the name of a provider and look up its catalog. I'd check the provider's own page for the format and access terms before deciding whether it has what I want.
Anabel’s take
I'd pick a format before looking at the order of the directory. If I came for a particular title, I'd use the list to find two possible places to check and compare the release pages themselves.