If you wanted something good second hand then something like Hope hubs with Mavic XC 717 rims would be a good place to start.
If you want new then I would look at some Stans rims – Crests should be fine and will run much wider than 2.1. Arch EX will be a bit tougher and heavier but as touch as you will probably need to go. Will save a bit over the 717s and be easier for tubeless.
There may be some slightly ligher rims out there too, stans or otherwise.
As for hubs…Hope – good reputation and back up – and resale, Superstar – good hubs, DT swiss – very good hubs, CK – very nice but getting a bit expensive!
Most fancy hubs allow you to swap the axle types which can be very useful for future proofing.