Stuff I'm using...

These two controller charging stands designed by /u/BearCubTeacher

https://www.thingiverse.com/thing:3744655

https://www.thingiverse.com/thing:3751848

Both available printed from /u/Zenyth3D:

https://www.etsy.com/listing/744857671/magnetic-charging-stand-for-valve-index

https://www.etsy.com/listing/707556478/valve-index-magnetic-charging-stand-slim

These are best used with cables with magnetic attachment recommended by /u/BearCubTeacher:

https://www.amazon.com/gp/product/B07HBZ3ZH9/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1

Dual USB charging adapter for the controllers:

https://www.amazon.com/Charger-Anker-Foldable-PowerPort-Samsung/dp/B07DFWKBF7/ref=sr_1_1?keywords=dual+usb+charger+anker&qid=1577428444&sr=8-1

Base station wall mounts (more compact and less visible than those that come with the Index):

https://www.amazon.com/gp/product/B00R96X9DS

Base station power cable extensions:

https://www.amazon.com/gp/product/B07QXKHHV8/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1