Don't forget Deep Linking!
Deep Linking is where you link each of your related articles aside from your homepage. This can help your single pages rank much higher for that keyword.
By doing this (linking each of your related articles), search engines will know that you have a lot of good content.
That is why, it is not a good idea to always link it to your homepage because search engines will think that you don’t have much content because it always link to your homepage.