I very rarely do moves likes these. The turn move is questionable no doubt, but it is the river move I'm interested in comments on.

Dealt [6c] in MP. NL100$ crypto site. I have both opponents covered.

I limp, SB minraises to 2$ UTG+1 calls, I call.

FLOP ($7) [3s][7c]

SB checks
UTG+1 bets $3
I call, and so does SB.

TURN ($16) [3s][7c]

SB checks
UTG+1 checks
I bet $10
SB calls, UTG+1 folds.

RIVER ($36) [3s][7c]
SB checks.
I bet $46. (rest of his stack)

Result:
SB folds. I win $36

You made a good read on the strength of his hand. Still I would rather make a large bet on the turn when you still have outs. Your river bet looks like a steal attempt, though a very good one. Also very good use of position there.

My guess is he had A4.

Have I mentioned lately I hate min-raises?