Reddit mentions of KHOMO - iPad Pro 10.5 Inch & iPad Air 3 2019 Charcoal Gray Color Case With Pen Holder - Companion Cover - Perfect match for Apple Smart keyboard and Cover

When I'm out & about: In this bumper case

When I'm at home: In this charger/stand

Consider the Pencil, and something like https://www.amazon.com/dp/B071WXGD7F , if you're into writing by hand. Notes in iOS 11 is supposed to offer text search of handwritten notes.

And ignore anyone who says it's weird to take photos with it. This is the device you would look at those photos on later, so you're snapshotting exactly what you want to come back to later.

here is what I have been using. It's not a sleeve but it goes great with the smart cover or keyboard

https://www.amazon.com/gp/product/B071WXGD7F/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

I bought this one about 6 months ago and it has held up well

Poetic Lumos Flexible Soft Transparent Ultra-Thin Impact Resistant TPU Case for Apple iPad Pro 10.5 Transparent Gray https://www.amazon.com/dp/B01MZ79FAM/ref=cm_sw_r_cp_api_FA2IzbWDNF156

Or

iPad Pro 10.5 Inch Charcoal Gray Color Case With Pen Holder - Companion Cover - Perfect match for Apple Smart keyboard and Cover https://www.amazon.com/dp/B071WXGD7F/ref=cm_sw_r_cp_api_1A2Izb6HCVBKH

I got this case, which is compatible with the Smart Keyboard and has a pencil holder. https://www.amazon.com/gp/aw/d/B071WXGD7F/ref=psdcmw_3012929011_t1_B07215MYS4

I'll be going with THIS one. I use the smart keyboard and this will help protect the back and look like it belongs.

Currently, I use a beige smart cover on the back. It works surprisingly well on the back of my iPad with the smart keyboard on the front. I put it on the back only while it's in my bag.

I have these two:

https://www.amazon.com/gp/product/B071WXGD7F/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

https://www.amazon.com/gp/product/B01MZ79FAM/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1

They're both good.

I use https://www.amazon.com/gp/product/B071WXGD7F which offers better protection because it isn't plastic (think TPU like case) and hides the Apple logo nicely.

OH NO! The version I have is currently unavailable - it is just the back cover. I pointed to the wrong cover in my original reply.

This is the one I meant to link to:
https://www.amazon.com/gp/product/B071WXGD7F/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

I got this one for the 10.5 -- assume they make one for the 9.7

It works well so far.

https://www.amazon.com/gp/product/B071WXGD7F/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

I got the version with a holder for the pencil and it's great. Good texture, fits well, and holding up great. My only complaint would be that the covered
powe and volume buttons are a little clunky to hit, not bad at all though.

https://www.amazon.com/iPad-10-5-Inch-Black-Holder/dp/B071WXGD7F

This is all you need. Get a smart case with it from Apple. Amazing case that I genuinely think about how happy I am with it on a daily basis.

Edit to add: You don't need the smart cover with the keyboard. The regular cover works perfect and adds virtually no size at all.