Ozbargain has some cards with current or expired deals to get a sense of what's on offer.
St George Amplify rewards as mentioned. Open a transaction account, and drop $500 in there and make 5x payments in first month to get $40. Then in your account, go to credit card products and the Amplify Platinum is 130k points = 65k KF miles with $0 annual fee.
I just applied for St Georges tonight, but realised that I forgot in the past month about the extra $40 and didn't jump through the hoops.
ANZ Platinum or Black if you have the salary for it. Waiting for my pay rise 1st April to apply for that.
Amex Explorer is good even after devaluation. I'm waiting for the next promo as they recently had a really good one for MR points, and trying hard to ignore the decent offer for QF points now running. But again, waiting for my pay rise to qualify.
Westpac Rewards Platinum I think I got about 35k or 38k KF miles.
Suncorp Reward Points - about 52k miles for $129 annual fee.
Now that news of velocity transfers coming back, the Citi Rewards Flybuys Card is an option for about 33k KF miles.
I opened an HSBC account which I use for 2% cashback on all tap payments under $100 then got a link to 120k HSBC points when I got a credit card with them. I now am deciding to use my 130k points (inc spend) for $600 cashback to pay off my credit card, or about 65k velocity miles or about 42k KF.
You can also buy velocity points from the Ozbargain classifieds and then convert them, haven't done it though. I think cost would end up being 1.22 cents per KF mile.
Also regular flybuys promos, never bothered about flybuys before 2021, but then I went hard on the promos and got 82,000 points. Could convert to Velocity for 41k miles, then again to KF for 26,453 KF miles. For some reason Coles is no longer targeting me for weekly spends.