i want to try a 3bm on chase and american express. whats the best cards to try with just a debit card from td?
The best cards are the ones you would like best.
As far as ease of getting the cards, if you have a short / non-existent credit history, you will be better off going for non "Signature" cards with Chase. I would say Sapphire Preferred is easy to get because it is in their own currency. Freedom should be good too, and that's always good to have in your wallet.
As far as Amex, go for the SPG. I've seen them issue it to a small credit line, and those points are considered to be tops.
Citi AA cards might be another good avenue to try. Use the most current 50K links you can get your hands on.