Wings of Fire is one of my all time favorite series
Survivors by Erin Hunter is a dog series
The Guardian Herd is a horse/pegasi series
Now for those solo books: warning... some of these books have very adult concepts, especially the ones by Jodi Picout. I really should not have read this yet, as I am nowhere near to being an adult. If I told you my age, I garuntee you wouldn't believe me. But the books are good, so...
- Educated by Tara Westover. This is a memoir. I highly suggest, but it is a rough read. Tough to get into.
- Vanishing Acts, by Jodi Picout... warning - adult language and concepts, but a real good read
- Nineteen Minutes - about a school shooter. Same warning as above.
- Into Thin Air - A rough read to get through, but suspenseful and really good.
- Unbroken - hard to get into, but an insane story. I highly recommend.
All the books mentioned above are kinda way too old for my age. But, if anything, they are really good and really help your writing skills :)