@PeteS - +1 for Convology XT, and also @Boydies advice, less is more... other reverbs that are rather useful and that I find using a lot...No idea how much they currently are.
Arturia Rev plate 140 - Lovely for LVox
https://www.arturia.com/products/software-effects/reverbs-bundle/rev-plate140Eventide Blackhole - Massive and I mean HUGE verb
https://www.eventideaudio.com/products/reverb/reverb/blackholeLexicon MPX1 - Some stunning drum rooms, and great for tight brass (along with soundtoys microshift)
https://lexiconpro.com/en/products/mpx-native-reverbWaves Abbey Road Plates and Chamber
https://www.waves.com/plugins/abbey-road-chambersIf I'm mixing axes and using Amplitude, the inbuilt verbs in that are pretty good.
Two Notes Torpedo Wall of sound has some lovely room verbs, really useful for when the electric guitar is prominent in the mix.
https://www.two-notes.com/wall-of-soundFirst know how you want it to sound, you know Big, spacious, tight, bathroomy, never ending etc, and if you are able where it'll be used, as an insert fx(affecting just that one track), on a an aux buss (affecting some tracks in different amounts) or on the master buss (affecting everything)
I'd advise to take a Lvox , an accompanying Acoustic guitar and drum tracks, and plonk each one as an insert fx on each track, set the verb to how you want it, then copy and paste the verbs to the other tracks, then Solo the LVox, enable verb 1, then bypass it, enable verb 2 etc. make notes of what you hear.
It's really important not to have any fx on the recorded tracks.
(btw I did consider setting up an aux buss for each verb you have, (including stock DAW verbs) decide on the setting you want from each verb, set the send to each aux buss the same from each track, and toggle each one, but to me it's better that the fx 'gets in the way' of the signal, rather than bit of it as in an aus buss)
I would also recommend trialling so very expensive verbs, with no intention of buying them, just so you can hear what price does for you, if anything...(altiverb has a hefty price tag)
Dry LVox with verb 1, verb 2 verb 3
Dry Drums with verb ...
Dry Acoustic Guitar ...
Make notes, compare and decide, and be honest.
Hope this helps..
Rich