I have found that if you let say, a tank or harvester kill you, there is about a 90% chance it will turn into a rival.
It is common knowledge that Rivals can spawn out of those enemies that kill you.
Also, there is 2h in-game cooldown period before a new rival can spawn in the same area again.
Further reading: How to get a rival to spawn (guide)
Have you no pride, young man? Tanks and Rivals should be swiftly assassinated, not indulged…
2 Likes