Which DACs are known to be sweet/rich/relaxed?

Problem
System is nicely transparant and detailed, but tends to get bright and harsh with certain (rock) recordings and at higher volume levels.

Objective
Nudge the system towards a sweeter, richer, more relaxed presentation.

Proposed solution / first step
Upgrade to a (tube based) DAC, budget $25-40k.

Current chain

• ROON Nucleus
• Mola Mola Tambaqui
• Gryphon Essence pre amp
• Gryphon Essence monoblocks
• Focal Stella Utopia EVO
• Full loom of Triode Wire Labs cables
• Dedicated power line straight into Puritan PSM156 mains filter
• System resides in the living room with some diffusors but no absorption other than sofas, chairs, and some rugs.

On my radar
Lampizator Pacific (or Golden Gate 2 since I heard it's more "tube-like")
Aries Cerat Kassandra 2 Ref or Sig

— What other DACs should I consider?
— Do you think upgrading to another (tube based) DAC will achieve that sweeter, richer, more relaxed presentation?