tbh, there are more opinions than tyre manufacturers, but if you can, I'd stick with the standard profile
Never tried Metzelers, but I have used Dunlop's, Bridgestone's, Avon's, Michelin's, over the years
None make bad tyres these days.
Plenty of tread left on mine, I won't be changing till I need to
Just doing a quick internet search, Avon Roadriders look to be a reasonably priced option :
140/70V17 Roadrider AM26 Rear Avon Motorcycle Tyre. Avon ...£77.99.
110/80V17 Roadrider AM26 Front Avon Motorcycle Tyre. Avon AM26 ...£64.99.