I like to cycle through game OSTs when I need to concentrate.
Final Fantasy (X and X-2 especially)
Nier and Nier Automata
Guardians Crusade
Spyro
When I’m less focused I tend to listen to my usual artists like Brand New, Coheed and Cambria, Smashing Pumpkins and The Republic Of Wolves.
Mars Attacks. Hilarious now but it absolutely traumatised me when I was younger.