Where to find editorial/tempo marking for movements? and work number

[Bob]

Like what's printed in a program?  If I want the tempo/editorial marking for the first movement of such-and-such symphony, where's a scholarly place to find that?  Somewhere online, but somewhere that's solid, like Groves (Oxford Music Online).

I did check OMO but it doesn't list the editorial marking, at least not under the composer's bio and his works.

And the op./work number too.  I guess Groves does have that though.  So I'm still looking for tempo marking "titles."