Basic mechanics make your swing what it is, there are no gimmicks in this game. 3 aids to maintain your swing
First would be the Orange Whip. Love it for many reasons but I think it really works on the timing and length of your swing.
Second would be a simple reminder grip, don’t attach it to a club, this way you can use it anywhere including a car or plane to ensure you are holding the club properly.
Lastly would be an impact bag. For right handed players feel a straight, long line from the top of your shoulder to the head of the club with the shaft leveraging or compressing the bag. Impact is golf so pop that bag with a flat left wrist and you’re going places.
Now get out there and make 2023 your best golf year ever! Have fun and good luck!!