I am experienced with both. It kind of depends. I definitely recommend a tubed -preamp (Audio Research my preference, or Conrad Johnson or VAC). This will add a more musical and natural sound to your system. Hard to see a downside. Definitely the first step. Buy used to reduce cost. They are made to last decades.
My first tube amp was revelatory and put an end to me ever wanting another solid state amp again, after over forty years of great and powerful solid state amps. But there is a trade off. That is the artificial brick wall slam goes away. It is replaced with a more nuanced, natural and real sounding bass… likewhat you experience in the real world. But if you sit in front of your system waiting for the next fast wall of bass to hit your chest it might leave you wanting. For me, I noticed the absence and instantly didn’t care because of all the incredible aspects of sound quality I gained. Again, I prefer Audio Resesrch… detailed, powerful and incredibly natural and musical… Conrad Johnson and VAC…. VTL, Cary… the list of great tube amps goes on. There are also budget brands.