Orpheus is a wrapper for a modified version of Impacket's GetUserSPNs.py and kerberosv5.py which alters the KDC Options (Ticket Options) and the Encryption Type for Kerberoasting.
Side Note: Orpheus is named after the Greek god that was able to get past Cerberus (the three headed dog) to get into Hades.
You will need to install the latest version of Impacket. This was tested on the 0.10.0 release. Then
git clone https://github.com/trustedsec/orpheus.git
cd orpheus
python3 orpheus.py
Check out the video on YouTube
Check out the blog post on TrustedSec