First off you need to search for the right keywords -- "swing arm lamp" & "hardwired" & "switched" -- that gives me hundreds of options --
Swing Arm And Plug in Lamps by Sararte.com
Secondly, any "wall lamp" that has a line voltage cord should be safe to "hardwire" -- all competent electricians can do this and most skilled DIYers also understand how to do this safely with modern polarized cord sets. If the lamp has a "low voltage transformer" as part of the cord (the ugly black wall wart that comes with so many gizmos...) those cannot be installed inside a electrical box, but some low voltage lamps are suitable for direct wiring, with the transformer elsewhere in the housing.
Further I would recommend having "bedside wall switches" installed to conveniently control the lamp. This i far better than flailing in the dark for switch on the mounting base of grasping for a socket mounted switch near what is often a hot bulb. Even better are putting the lamps on three way switches so either partner can switch on their mate as well as their own lamp.
The nicest such setups use four-way switches or "remote activation" so that the bedside lamps can be used for general illumination as you enter a dark bedroom with switches near the doorway to hall or bath...
Those "push buttoms" are part of the some odd "home automation" system that I would not recommend, but the dual switch close-up is smart.
4-way switch variations.
This is increasingly easy to accomplish with remote switches dramatically falling in price and becoming more widely available...
Lutron Remote Wall Switch