Ibotta has increased cash back rate and also a spending bonus. You can earn an extra $5 for every $50 you spend in the Mobile Shopping category. That’s up to $20 in extra cash back when you spend $200. They also have a triple cash back promotion going on with increased rates at many merchants.
This could be combined with a great 20% discount on eBay which I posted earlier.
If you don’t have an account, you can sign up and get a $10 signup bonus. That’s my link and I would greatly appreciate it if you use it.