> Possibly some kind of laser beam thing that sweeps the ground in front of you might work?

That's what the TFL bikes in London do[0]:

"The Blaze Laserlight is fixed to the cycle frame and projects a green cycle-shaped image onto the ground around 6 metres ahead of the cycle."

[0] https://tfl.gov.uk/modes/cycling/santander-cycles/blaze-lase...