So, I did a little research and found some paper on Amazon that would be helpful to these kids. It's highlighted, which allows the kids to focus on forming the letters correctly and gives a guide for writing. I noticed a big improvement with one of my kids and will continue to use this type of paper for writing.
I sent a bunch of this paper home to practice writing at home too.
I also created some handwriting practice pages to help with letter formations. I sent a bunch of copies home and I put them in protective sleeves to save paper.
Check them out to see if you can use them too!