How to internal link using long tail keywords ?

Planning on building an affiliate site. Here is a question, I thought of picking your smart brains.
I plan to have a money page with 'Bext Product'. However, there are much long tail KWs available such as 'Best Product With Feature One', 'Best Product With Feature Two' etc.
So my initial hunch is to build a silo structure, having an individual post for each of the long tail KWs and then a 'hub' page for the main KW.
My concern is :

1. since my hub page will also mention about long tail KWs, will it cause any KW cannibalization?
2. What is the best way to do this?
3. What is the best way to internal link this structure?

Appreciate your thoughts.

It would be nice to get response from the experienced people because I bother with the same question.

Does anyone could give advice how to approach in this case?