Why wud it need manufacturer warranty? And I was looking more for something that has 2 or 3X bonus points
Amex Extended Warranty good for items up to $10k. Extends mfg warranty by one year.
Amex Pt Purchase protection good for purchases up to $10k.
Disco has 5% CB but only on the first $1500. Then its 1%. These are doubled if its your first year and you are enrolled in CB matching.
Amazon Prime store card is 5% CB as a statement credit.
Chase Amazon Visa is 3%.
There are several 2% cards available.
UR and MR points can be parlayed for greater than $0.02, often greater than $0.04. Plus if you are eligible to app for the Pt or Biz Pt with a 100-150-250k sign-up bonus, you can hit it in one shot.