There's a Tribal available from Iron Shipwrights in resin, HMS Zulu. They also do a Hunt Class escort destroyer HMS Middleton, and an H Class destroyer in HMS Hesperus.
http://www.commanderseries.com/ships_350.html
White Ensign does HMS Sheffield, HMS Laforey (L Class), HMS Musketeer (M Class), HMS Janus (J class), HMS Kelly (K Class, notice a trend here?) a 1916 HMS Mary Rose (3-stack M-class, not the same as Musketeer though), HMS Starling (Modified Black Swan), and HMS Abdiel.
www.whiteensignmodels.com
The reasoning is simple - aside from HMS Hood, most styrene model manufacturers look at Royal Navy subjects and realize that they won't sell tens of thousands of units - period. It's not because they weren't pretty ships, or famous ships, or unpopular ships. Yes, Airfix and Frog and Revell did box scale RN subjects, but that was a long time ago, and they were (mostly) European companies.
We have to remember that as ship modelers, we make up only a small percentage of the sales of a kit. They don't cater to us, they cater to the mainstream modelers. And as long as mainstream modelers want Arizonas, Bismarcks, Titanics, and Yamatos, those companies will continue to produce them because they know they can make a profit - period. To the average, non-British ship modeler, Sheffield, Warspite, Arethusa, Leander, etc., are practically invisible. To us, certainly not, but we (the hardcore ship modelers) don't have the numbers to drive the production of kits like those. Look at how long it took us to get an HMS Hood.
Now, that being said, Iron Shipwrights and White Ensign Models all have 1/350 Royal Navy subjects in their product lines...ISW even does some big-time heavies like Rodney/Nelson and Queen Elizabeth. Sure, you're going to pay for them, but that's another discussion.
Jeff