Vulnerability diagnosis of application and web

Thank you for your reading.

I am going to make an reservation application for urer and therapist this year.
My app includes admin web site.
My app is similar to hogugu below.

https://hogugu.com/

I am looking for the person who can make a vulnerability diagnosis of my application system.

Please use the tool equivalent to OWASP ZAP at least. Of course, if you have better idea and tools, please suggest.

After vulnerability diagnosis, please submit report about vulnerability and how to fix.

I prioritize accuracy over speed.