Okay
Usually, you won’t find many cards offering cash back and lounge access in the same, especially LTF credit cards.
Try getting the Sapphiro as above for lounge access, if that’s an option. For cashback cards, you can apply for SBI Cashback and Amazon Pay ICICI cards. The APay card is free, whereas SBI is paid. However, you’ll easily recoup that fee within a month, if not 2 at most.
As another comment mentioned, Axis Flipkart is also an option. Axis Airtel is one too, but I generally don’t trust Axis now for CCs for how often they devalue their offerings.