trips bomb pot how to play???

20plo - clubgg - bombpot
I actually timed out in game. I have no clue what to do. Sizing is gigantic. We beat bluffs, fd, Kx.
We lose to 4x with higher cards than 8, we also drawing dead to kk/k4 type nutted hands.

Hero (UTG): 111.85 BB
MP: 95.7 BB (VPIP: 46.30, PFR: 24.07, 3Bet Preflop: 5.88, Hands: 71)
CO: 36.85 BB (VPIP: 70.37, PFR: 11.11, 3Bet Preflop: 7.14, Hands: 35)
BTN: 143.9 BB (VPIP: 42.11, PFR: 8.77, 3Bet Preflop: 15.38, Hands: 73)
SB: 206.7 BB (VPIP: 100.00, PFR: 50.00, 3Bet Preflop: 50.00, Hands: 2)
BB: 100 BB (VPIP: 51.85, PFR: 29.63, 3Bet Preflop: 0.00, Hands: 34)

6 players post ante of 3.5 BB, SB posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 24 BB) Hero has 8♠ 7♦ 4♦ 2♥

Flop: (24 BB, 2 players) 4♠ K♠ 4♥

SB checks, BB checks, Hero checks, MP checks, CO checks, BTN bets 18 BB
Hero???