(adsbygoogle = window.adsbygoogle || []).push({}); I've tried many tutorials while most never worked, I accidentally managed to find out how to rank my flying up very fast.
I had done this by using these specific requirements in the race:
Race- Lazer Quest
Race Type- Only GTA
No. of laps- 2
Time of day- Morning (For additional rp)
Weather- Clear
Traffic- On
Wanted levels- Off
Catchup- Doesn't matter
Split time- Doesn't matter
You'll get 2000 xp + as well as ranking up flying.
* Although it is faster than other methods, you'll still need to be patient as it is quite lengthy ( In a good way )

Do you need someone in the match with you or can you do it solo

I haven't played the game lately so I don't know if it's patched or not.
But if is isn't
Then solo would be fine, Only if you want more rp you can play with other people.