What are the Tax Dissertation Topics?

Hello Experts!

I hope you're doing great. I'm Dr. Ariel Wilson, and I live in the United Kingdom. My son, who is studying at Leeds University, needs to come up with a list of 50 Tax Dissertation Topics. Due to my busy schedule, I can't help him. Do you know of any service or website where he can find help to complete this task? I would greatly appreciate it!

Thank you!