Tough spot with river donk

Blinds: $2/5 ($10 straddle on)
Hero: UTG1 (J♠️ J♣️)
Villains: SB, UTG, LJ
Board: J♥️ 9♥️ 6♦️ 7♦️ 2♥️
Preflop (125): raise $30, call, call, call
Flop (305): check, check, bet $60, fold, call, call
Turn (1130): check, check, bet $275, call, call
River (1630): check, bet $500, fold, fold

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I thought UTG's donking range is only flush here like AThh A8hh 89hh etc. I tank fold and SB folds. He later showed 93dd... His bluff was really good, not sure if I would've found a call here