Standard is 2 or 3 octaves, arpeggios, 3rds, 4ths etc ascending only (for some reason), groups of 3 or groups of 4 and the different types of articulation (stoccato, legato, accent on every second, third or fourth note etc).

Honestly that sounds like a lot but all the articulation stuff is the same for every scale and once you get the hang of intervals they are really not hard.

Classical musicians do the above for major, harmonic and melodic minor. Jazzers will typically add the major and melodic minor modes, the whole tone scales (only 2 of those) and the diminished scales. People like me add the harmonic major and harmonic minor modes, the augmented scale and a few other bits and pieces.