3-bet the playable top, fold the rest — the small blind cannot afford to defend passively against a button open.
The reference tier. 3-bets are linear and value-heavy, live-style; calls are pairs, strong suited hands, and the best broadways.
The button opens into the blinds nearly half the time. The small blind's answer is an aggressive, 3-bet-first defense — flatting here plays a guessing game out of position against the widest range in poker.
Assumes a ~4bb open; 3-bet to ~3x the open in position, ~4x from the blinds — larger as stacks deepen.