Not sure how I needed to proceed on flop and turn. would have folded on a riverbet.

PokerStars - $0.25 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

MP: 75.72 BB (VPIP: 71.15, PFR: 19.23, 3Bet Preflop: 9.68, Hands: 53)
CO: 135.76 BB (VPIP: 21.97, PFR: 18.18, 3Bet Preflop: 5.21, Hands: 541)
BTN: 100 BB (VPIP: 13.79, PFR: 11.49, 3Bet Preflop: 2.70, Hands: 88)
Hero (SB): 142.32 BB
BB: 123.44 BB (VPIP: 22.50, PFR: 20.71, 3Bet Preflop: 2.15, Hands: 285)
UTG: 108.44

PokerStars - $0.25 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

Hero (SB): 139.12 BB
BB: 174.84 BB (VPIP: 28.13, PFR: 21.88, 3Bet Preflop: 3.23, Hands: 100)
UTG: 92.4 BB (VPIP: 88.24, PFR: 58.82, 3Bet Preflop: 16.67, Hands: 17)
MP: 107.32 BB (VPIP: 19.57, PFR: 17.39, 3Bet Preflop: 7.50, Hands: 95)
CO: 100 BB (VPIP: 21.75, PFR: 17.59, 3Bet Preflop: 5.88, Hands: 737)
BTN: 208.64 BB (VPIP: 24.32, PFR: 18.62, 3Bet Preflop: 13.82, Hands: 340)

Hero posts SB 0.4 BB,

PokerStars - $0.25 NL (6 max) - Holdem - 5 players
Hand converted by PokerTracker 4

Hero (BB): 277.6 BB
UTG: 30.6 BB (VPIP: 30.30, PFR: 15.15, 3Bet Preflop: 0.00, Hands: 68)
CO: 114.8 BB (VPIP: 18.64, PFR: 14.41, 3Bet Preflop: 7.69, Hands: 244)
BTN: 147.12 BB (VPIP: 32.65, PFR: 22.45, 3Bet Preflop: 11.11, Hands: 148)
SB: 61.92 BB (VPIP: 51.22, PFR: 12.20, 3Bet Preflop: 9.09, Hands: 41)

SB posts SB 0.4 BB, Hero posts BB 1 BB

Pre Flop: (pot: 1.4 BB) Hero has T♣ 8♣

fold, fold,

On following situation we had some discission who had to show his hand first.

On the turn on player goes all-inn with 2 callers.

On the river 1 of the remaining players bets and the other one folds.

Does the person who went all in has to show first, the last raiser or the first player after the dealer button?

Thanks for your insigths

PokerStars - $0.10 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

Hero (BB): 134 BB
UTG: 130 BB
MP: 104.3 BB
CO: 188.2 BB
BTN: 112.1 BB
SB: 54.4 BB

SB posts SB 0.5 BB, Hero posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has 5♠ 3♠

UTG raises to 2.5 BB, fold, fold, fold, fold, Hero calls 1.5 BB

Flop: (5.5 BB, 2 players) J♥ 4♦ 2♦
Hero checks, UTG bets 1.7 BB, Hero raises to 8.4 BB, UTG calls 6.7 BB

Turn: (22.3 BB, 2 players) 6♣
Hero checks, UTG bets 10.7 BB,

PokerStars - $0.10 NL - Holdem - 7 players
Hand converted by PokerTracker 4

Hero (UTG+1): 96.5 BB
MP: 100 BB
CO: 106 BB
BTN: 40 BB
SB: 155.7 BB
BB: 86.8 BB
UTG: 116.7 BB

SB posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has 5♠ 5♥

UTG calls 1 BB, Hero raises to 3.5 BB, fold, CO calls 3.5 BB, fold, fold, fold, UTG calls 2.5 BB

Flop: (12 BB, 3 players) 6♠ T♦ 5♣
UTG checks, Hero bets 3 BB, fold, UTG calls 3 BB

Turn: (18 BB, 2 players) 4♥
UTG bets 8.6 BB, Hero calls 8.6 BB

PokerStars - $0.10 NL - Holdem - 8 players
Hand converted by PokerTracker 4

UTG: 122.8 BB
UTG+1: 116.4 BB
MP: 79 BB
MP+1: 147.5 BB
Hero (CO): 155.1 BB
BTN: 86.9 BB
SB: 103.9 BB
BB: 113 BB

SB posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has J♦ A♥

fold, fold, fold, fold, Hero raises to 3 BB, BTN calls 3 BB, SB calls 2.5 BB, fold

Flop: (10 BB, 3 players) 5♠ J♣ 7♠
SB checks, Hero bets 6.3 BB, BTN raises to 12.6 BB, fold, Hero calls 6.3 BB

Turn: (35.2 BB, 2 players) A♣
Hero

PokerStars - $0.10 NL - Holdem - 9 players
Hand converted by PokerTracker 4

MP+2: 100 BB
CO: 110.1 BB
BTN: 107.1 BB
Hero (SB): 106.8 BB
BB: 35.8 BB
UTG: 111.5 BB
UTG+1: 103.7 BB
MP: 9.6 BB
MP+1: 172.5 BB

Hero posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has K♠ K♥

fold, fold, fold, MP+1 raises to 3 BB, fold, CO raises to 9 BB, fold, Hero raises to 24 BB, fold, fold, CO calls 15 BB

Flop: (52 BB, 2 players) 4♦ 9♦ K♦
Hero checks, CO checks

Turn: (52 BB, 2 players) 7♥

PokerStars - $0.10 NL - Holdem - 8 players
Hand converted by PokerTracker 4

BB: 100 BB
UTG: 100 BB
UTG+1: 118.3 BB
MP: 68.8 BB
MP+1: 83.3 BB
CO: 73.2 BB
BTN: 78.2 BB
Hero (SB): 146.1 BB

Hero posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has K♠ 9♠

fold, fold, fold, MP+1 raises to 2 BB, fold, fold, Hero raises to 8 BB, fold, MP+1 raises to 14 BB, Hero calls 6 BB

Flop: (29 BB, 2 players) 8♠ 2♣ A♠
Hero checks, MP+1 bets 10 BB, Hero calls 10 BB

Turn: (49 BB, 2 players) Q♣