Which Tyres?

Slightly odd question:

Is there a company whose tyres consistently measure taller than stated, but not wider?

I'm converting an old touring bike from 700c > 650b, using rims with a 19mm internal width.
Current 42mm WTB tyres are coming up as 42mm wide but only 35mm tall.
I need more height to raise the BB and avoid pedal strike.

So: tall but not wide tyres, in the 42-50mm range, for touring / adventure / gravel, and in 650b?
Or least something that might have less discrepancy between height and width?

#tumbleweed