You should first decide what kind of wallet you need -a hot ar a cold one. The difference is that the hot wallets are connected to the internet. Actually both of them are good, it depends just on your preferences. If you want to get a card, as far as I know the best one is coinbase. However, there are a lot of factors, and I recommend you to read about each card, their pros and cons, and information about crypto in general. I would suggest also reading about the crypto and bitcoin growth and potential tendences. You can
read here, this article is very useful and contains a lot of interesting information.