op
all that you are considering are good choices, well known, good quality tube amps
the devore 9’s are known to be smooth/warm sounding and moderately high efficiency ... suggest you go with an amp that does not accentuate those sonic qualities even more, and has the power to provide dynamic headroom as needed
https://www.usaudiomart.com/details/649693502-audio-research-vt80se/ <--- is what i would choose
all that you are considering are good choices, well known, good quality tube amps
the devore 9’s are known to be smooth/warm sounding and moderately high efficiency ... suggest you go with an amp that does not accentuate those sonic qualities even more, and has the power to provide dynamic headroom as needed
https://www.usaudiomart.com/details/649693502-audio-research-vt80se/ <--- is what i would choose