I don't know about master orchestrators - so much piccolo - but Johann Jr. and Josef were definitely accomplished orchestrators capable of neat surprises. Something like Kaiserwalzer is genuinely affecting thanks to the color of the sound. All of them were able to get what they wanted from the orchestra. I would happily agree if you called Johann Jr and Josef master melodists, or master craftsmen.
Well put but I'd substitute *and* for *or*.
feel free to hit me with recommendations.
Naxos (actually Marco Polo) has recorded the complete (sic!) works of
Johann Strauss I,
Johann Strauss II and
Josef Strauss but afaIk only the
Strauss II CDs have been boxed.
There is also a 25-CD series of
Carl Michael Ziehrer's works on Preiser Records.
Admittedly, the above is probably for light music buffs only. (I have them all...)

For
Waldteufel, otomh this is excellent:

I have some more but in another location, I'll come back with them in a few days.
Josef Lanner was both the rival and friend of
Johann Strauss I. Otomh this is excellent too:
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Ditto.
(As an aside,
Willi Boskowsky was not only a Viennese Waltz specialist: he also recorded
Mozart's Piano Trios and...
Beethoven's Violin Sonatas, in both cases partnered by
Lili Kraus. Give them a try too.)