Fender 65 DRRI - Speaker Swap

[Chud]

I'm looking to swap out my stock speaker with something a little more......versitile? I've read all over the place that these amps stock can be a bit harsh with any pedals that intoduce overdrive\dirt.

Anyone have any suggestions on which speaker would be a fit for a 6120 RHH? I play mostly rockabilly, blues\rock, jazz, but nothing too extreme that requires extreme distortion.....although I have been know to bust out some metallica once and a while just for kicks.

Thanks for any advice!