I own a zillion tuners from inexpensive to very expensive ones. And I"m sorry but the "best" one belongs to a previous more civilized age.
I'm amazed at what junk some very expensive tuners are! Kind of depressing really. I won't go into details.
My all time best tuner is the Korg CA-10. Cheap, accurate, works well with mic, works well with bass or guitar, used 9 volt battery. Cheap enough to have them everywhere.
Problem, of course is that it was too cool. The great things about it needed to be broken like say changing from a common 9 volt battery to AA or AAA batteries that will one day drip corrosive goo all over the insides and render it destroyed. All the later Korg models are inferior. It's been discontinued for a long time. Thus passes civilization. I've got a couple snarks they are OK but clearly inferior to the CA-10. The headstock pickup does not work well on the B string. Only place you can still find a few of these is on Ebay. History soul-powers On.