I like them all. Probably prefer Gracie (though would use Grace officially) and Reuben if sticking with full name (don't like Roo) but Jacob if using Jake, which I really like.
In a similar vein:
Annie, Bonnie, Bronte, Cassie, Callie, Connie, Darcey, Daisy, Daphne, Dulcie, Edie, Evie, Ellie, Effie, Halle, Holly, Heidi, Hattie, Hetty, Ivy, Josie, Katie, Lily, Lucy, Libby, Lottie, Lacey, Lexi, Maisy, Molly, Millie, Marnie, Nancy, Peggy, Polly, Poppy, Penny, Posy, Rosie, Sadie, Sally, Sophie, Sylvie, Susie, Tilly, Tessie, Tansy, Tori, Verity
Aaron, Adam, Benjamin, Caleb, David, Daniel, Ezra, Elijah, Gabriel, Isaac, Joshua, John, James, Joseph, Joel, Jonah, Luke, Matthew, Mark, Michael, Micah, Noah, Nehemiah, Raphael, Solomon, Simeon, Simon, Samuel, Timothy, Thomas, Titus, Zachariah