Mavic A319 700c rims with a 19mm inner for 28mm - 50mm tires.  6-bolt disc QR hubs, rear 135mm

The Sta-Tru TR30 rim offers a 30mm tubeless ready inner profile with rim brake compatible sidewalls.  Offered with different hub options, these wheels might just be what you've been searching for.

BWW Commuter HD 700c rims with a 19mm inner for 28mm - 50mm tires.  6-bolt disc QR hubs, rear 135mm

The Sta-Tru TR25 rim offers a 25mm tubeless ready inner profile with rim brake compatible sidewalls.  Offered with different hub options, these wheels might just be what you've been searching for.

The Sta-Tru TR21 rim offers a 21mm tubeless ready inner profile with rim brake compatible sidewalls.  Offered with different hub options, these wheels might just be what you've been searching for.