I have been enjoying tubed integrated amplifiers and separates from Octave, Ayon, Audio Hungary, for many years now. I also have had in my stables SS integrated amplifiers and separates from Simaudio, McIntosh, Ayer, Bel Canto, Norma, and others over the years.
I have enjoyed each for their specific attributes, slam is not one of them (think the term in audio speak is a joke). I have only ever felt deprived of midrange using SS. I like to accentuate the positives and I feel that depending on all the other components in the chain one needs to be careful in their foray into the tubed world.
I would consider doing what I did transitioning from SS to tubes and others have recommended here, hybrid integrated or a tube pre with ss amplifier.
Just keep an open mind and you may need to try a few combinations of components before you find the synergy your are seeking.
Tubes vs SS, Ford vs Chevy...who cares it is what makes you happy!