Maybe try this tut:
https://www.animagraph.com.br/DeathBr...m_Tutorial.htm
He tends to use fillet/trims for alot of his work. Btw, he has another tut on making a car wheel that's also a good one for practice, although you may have to play with the circular fillet settings (like reversing the direction) in order for it to turn out properly. Good practice though as it's alot of repetitive work.
"Terminat Bora Diem, Terminal Auctor opus."