I'm still learning what to do in these types of situations. Raise 4th?

Razz ($1/$2), Ante $0.10, Bring-In $0.50 (converter)

3rd Street - (0.80 SB)

Seat 1: xx xx A___raises
Seat 2: xx xx 5___folds
Seat 3: xx xx K___brings-in___folds
Seat 4: xx xx 4___folds
Seat 5: xx xx Q___folds
Seat 6: xx xx 3___folds
Hero: 7 3 6___raises___calls
Seat 8: xx xx 5___calls___calls

4th Street - (7.30 SB)

Seat 1: xx xx A 2___bets
Hero: 7 3 6 2___calls
Seat 8: xx xx 5 5___calls

5th Street - (5.15 BB)

Seat 1: xx xx A 2 K___checks
Hero: 7 3 6 2 9___checks
Seat 8: xx xx 5 5 5___checks

6th Street - (5.15 BB)

Seat 1: xx xx A 2 K 2___checks___calls
Hero: 7 3 6 2 9 9___bets
Seat 8: xx xx 5 5 5 A___calls

River - (8.15 BB)

Seat 1: xx xx A 2 K 2 xx___checks
Hero: 7 3 6 2 9 9 7___checks
Seat 8: xx xx 5 5 5 A xx___checks

Total pot: (8.15 BB)

The paired fives would not be correct to even call one bet on 4th so I see no reason to raise. You're potentially very thin yourself against a likely wheel draw so raising could prove very costly to you (certainly more costly than anything you gain from pushing a player out)

Look at your 4th street and 3rd together- you have one card on the board, you have the worst possible 7, The A already reraised on 3rd, so you have to catch him, more than likely. If the paired 5 has A3 in the hole, I think I'd rather have his hand. Call and be ready to bail.

But--I'd have bet 5th in a heartbeat.

I think you should be rasing on 4th to push seat 8 out. He is correct to call otherwise and could suck out on you.

You should also be betting on 5th street.

Not sure about the river, though I'd check.