Go to Add new view, give it a name, Show Content of type YOURCONTENTTYPE, Create a page = yes, give it a URL and then click continue and edit. Pick which fields you want shown (or full rendered entity etc) and display style (show as a grid, table etc). Add a filter criteria and choose the select list field (or taxonomy term if you want to go back to that way) and expose it. This will now give you a page (the url you chose) where users can click a dropdown list to get the list of items.
If you wanted to go back to using taxonomy you could easily do so without even touching views. Basically you would let the users choose a taxonomy term from the vocabulary and clicking that taxonomy link on the node page will go to a taxonomy listing all the nodes tagged with that term. If you want to use views to do the same you need to start using contextual filters and depth modifiers (see the default taxonomy view as an example).