you need the Player::remoteId property
mp.events.add('render', () => {
mp.players.forEachInStreamRange(player => {
const position = player.position;
mp.game.graphics.drawText(`${player.name} [${player.remoteId}]`, [position.x, position.y, position.z], { font: 4, color: [255, 255, 255, 255], scale: [0.5, 0.5], outline: true })
});
});