PokerStars No-Limit Hold'em, $1.00 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Hero ($99.50)
UTG ($107.25)
MP ($102.35)
CO ($43.70)
Button ($80.55)
SB ($288.10)

Preflop: Hero is BB with K, A.
UTG calls $1, MP raises to $5, 2 folds, SB calls $4.50, Hero raises to $16, UTG folds, MP calls $11, SB calls $11.

Flop: ($49) T, 8, A (3 players)
SB checks, Hero ???

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Both Villians are unknown, as I've only recently began playing 100NL again.

Is the best line to bet 2/3rd pot and call a push from either opponent?