In the summer before Level 10, I would have your child's videos available to colleges at their convenience (not on your meet schedule). It is wrong to assume any once source is the best source in gymnastics. There are many web developers and quite a few parents host their own websites for pennies. YouTube works fine, but a webpage from which you can track visits, is available 24/7 and which is easily update-able and organized is ideal.
Content wise:
List of skills competed on each event - with video links
List of skills training on each event - with video links
Face pictures or videos of the gymnast speaking so the coach can more easily connect with the gymnast (marketing trick)
Body pictures, especially recent ones
List of accomplishments beginning at Level 9
Clear biography with important details ABOUT YOUR CHILD. Templates not only miss vital details, but they also make the child seem robotic. Has your child led the run? Has your child hit her beam routine every time in the past 2 seasons? Has your child always qualified to JO nationals? Did your child have the highest scoring pike yurchenko at Level ___? Does your child help other children in the gym? Does your child drive twice across town, but is never late? Does your child have a poster of the college team on her wall? Biographies are not a list of facts; rather they tell the story of your child. What is her story and why should she be selected to compete NCAA?
Clear information on the child's academics. If you go to live school (full or part time) or attend one of the well-known online programs, please spell that out along with a list of classes they have taken.
Perhaps a one-page resume in PDF which is easy to print and includes body and face picture with youtube channel link? One of my children had this and I was flat-out shocked how many times it was downloaded (both by parents who wanted to copy the format and by colleges who needed a quick look to retain for their records).
I may be forgetting things...many other people on this board have been through this process and have excellent advice.
Realistically:
Attend summer camps at the college(s) in which your child is interested. The new thing is one-day fall camps so attend those too, if possible. Even the biggest gyms allow their gymnasts to attend these now, so speak sincerely to your coach about attending if an opportunity presents itself.
Nothing wrong with attending a college-bound camp, but attending a big meet or a small camp can work equally well.
Send emails often with video links. Keep them short and read-able. They should be in the child's voice and written by the child, but nothing wrong with a parent fixing a small item of grammar. If the parent writes them, they will lose the personality of the child and the child's personality is essential to this process.
Ultimately, place well, compete well, have great attitude, and connect with the NCAA coach on a personal level.