Depends on what type of music you're thinking of to fit "futuristic". I also like things with minimal lyrics, as well as long track that I don't have to manage.
Here's some different kinds
Witch House (Comp)
(Some spliced lyrics, minimal)
Paul Kelkbrenner (Techno/Minimal)
Plaid
(Electronica/Experimental)
This one's pretty chill for drawing
pg.lost
(downtempo -lots of electric guitars n shit)
And my favorites
Hotline Mimi 2 Unreleased OST
Worakls
Vitalic
(Electrotrash)
(Some words because it is live, but otherwise you can't tell by the sound quality)
Hotline Miami 2 Released OST
(You probably want to go to the page to get the timestamps because there's so many different ones, but this is one of the first things I thought of when you mentioned a track that would fit a futuristic script. By personal preference, a lot of these have an 80's vibe, lol)
Happy tunes c: