Need suggestions on a new lap/tablet

I would greatly appreciate and suggestions on a device I'm looking to buy. It's actually for my wife who needs something for meetings, contracts/paperwork, email and vid meetings on the go. It must be portable and fully functional (not like an RT or ipad type device) but still be something around tablet size (keyboard a must). Have been leaning towards the yoga 13 but would like other suggestions before we jump. Thanks!

Open to any ecosystem as well as any brand.