Maybe not the best advice to somebody who wants to go down the tube route, but with myself being a die hard tube user for numerous years, there is a relevance to the suggestion.
I have heard over recent years SS Power Amp's that are in my view as attractive in use as a Tube Amp' that does not have noticeable bloom.
If you think bloom is your thing, (certainly not mine) and it has not been lived with for a period of time, when encountered and it is present with the capability to be perceived as being detected for a extended period. The bloom/coloration becomes a detractor and is fatiguing, that is how I react to it.
The impact on the the settlement into the musical encounter is no different to a harsh high frequency, the experience is not wanted to be endured, and shortening of the planned time for a session will be the outcome.
I use tube equipment that in the world of tubes are on the transparent side of the scale. There are SS Class D Amp's that I have heard in A/B comparison and these are quite similar in how they evoke emotion and encourage a embracing of the musical encounter.
My suggestion if noticeable bloom/colouration is not being sought, would be to have a look at a B1 Korg Pre-Amp' to be paired with a Class D SS Power Amp. This will catapult one quite close to what a well worked out design for a Transparent Type of Tube Amp can offer, without any concerns for what owning Valve equipment carries.