Im actually totally lost on how to play this postflop.

read are probably irrelevant since the nature of opp's stacks.

but MP1 3 bets flush draws and calls down with pairs. other 2 are newish to the table

PokerStars No-Limit Hold'em, $0.25 BB (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG ($52.80)
UTG+1 ($44.40)
MP1 ($15.60)
MP2 ($37.75)
CO ($5)
Hero ($47.90)
SB ($12.20)
BB ($26.20)

Preflop: Hero is Button with T, 8. CO posts a blind of $0.25.
2 folds, MP1 calls $0.25, 1 fold, CO (poster) checks, Hero calls $0.25, 1 fold, BB checks.

Flop: ($1.10) J, T, 6 (4 players)
BB checks, MP1 checks, CO bets $1.25, Hero calls $1.25, BB folds, MP1 calls $1.25.

Turn: ($4.85) 2 (3 players)
MP1 checks, CO bets $3.5 (All-In), Hero calls $3.50, MP1 folds.

River: ($11.85) A (2 players, 1 all-in)

Final Pot: $11.85