torah study - What are some good resources for deciphering a Tosfos comment that I can't figure out?

What are some good resources for deciphering a Tosfos comment that I can't figure out?

Here is what I am looking for in a resource:

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  When Tosfos brings another gemoro this resource should provide an explanation of it without me having to look it up.

  
  


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  Unlike Artscroll, it shouldn't be just a summary of the Tosfos, but a full explanation of it.

  
  


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  And the most important it should be written by someone who really understands tosfos and gets it right.