Middle Grade Book Recommendations

I'm in a rut. I have 2 books i'm working on and should be done soon with them. Both are direct from the authors so I want to get them read and reviewed.

 

I think I've read too much of similar stuff, and need to switch genres maybe?

Usually a good children's chapter book or middle grade book works to get me out of this weird rut I am in.

 

I just got Caddy Woodlawn from the library. Any other suggestions?

My niece is 8 and nephew will be 10 so I like stuff I can possible share with them as well.

 

Any recommendations would be welcome!