Pure tube amps usually do not have a tight bass unless you a bit more.
Normally, a tube preamp + SS amp would give you what you are looking for. So likely a hybrid tube integrated might be a good option.
The Krell k-300i integrated has a warm sound “…output up to 150Wpc into 8 ohms and 300Wpc into 4 ohms, with its iBias technology allowing the amp to deliver up to the first 90W in class-A…”(Stereophile)