I’ve heard the MA252 and it doesn’t sound like it has tubes in it even though it looks cool. it’s a fine amp aside, albeit pricey.
Other options that would sound good and are affordable to modestly pricey are: Rogue Sphinx 3, Marantz Model 30, Pass INT-25 (pricey), Van Alstine Set 120, LTA Z10 are all integrated (1-box solutions) that either have tube hybrid, (no exposed) tubes, or sound warm with tube like qualities.