MP ($314.80)
CO ($609.90)
Hero (Button) ($437.60)
SB ($485.10)
BB ($545.80)
UTG ($400.00)

Preflop: Hero is Button with x, x
2 folds, Hero raises to $8.00, SB calls $6.00, 1 fold

Flop: ($18.00) K, 2, 6 (3 players)
SB checks, Hero bets $16.00, SB calls $16.00

Turn: ($50.00) 4 (3 players)
SB checks, Hero checks

River: ($50.00) A (3 players)
SB checks, Hero bets $38.00, SB raises to $110.00, Hero's remaining stack is $413.16.

Villain runs 27/20, pretty passive but with a river c/r % of 10 over 870 hands (so c/r by streets stats have def not converged but we might let it influence our play a tiny bit). We haven't tangled today and there's no history that I can remember. I've been playing a ton of hands ip but haven't played any big pots at all.

1. is this a spot to consider a bluff shove?
2. what is the worst hand to call with?