inherited cards today(no clue what I have)

I dont collect baseball cards and need to know how to go about finding homes for them. My grandfather died and i inherited his cards and balls collection. There are cards and balls signed by people famous like mickey mantle and roger maris. I have a few balls and cards with both of there names on it. Ive heard of both of them.I also have pictures of my grandfather with Joe DiMaggio autographed by alot of other people too. Any input is appreciated. I have boxes and boxes of stuff but those looked to stand out alot because they were all protected so well. these were not in the attic. he displayed all this stuff in an entire room

If you could post some photos that would be great and helpful. If you are looking to resell autographs you will need to get them authenticated.

Lee