What harmonica to get

Hello, I am new to harmonicas. But I am determined to learn in honor of my recently deceased grandfather who played harmonicas all his life. I started with buying a hohner blues bender, but the 9th hole is really hard to blow and I want to upgrade it. So I have been lookign at the Hohner marine band and the Hohner blues harp, and I am wondering which one of those would you recomend for me to get.

Second I would also like to know what key I should get it in, since the first one I bought was in c. But in the videos you said we should use a harmonica in the key of A.

I am looking forward for your reply and to continue using this website to learn.