Dunno if you are still interested in hearing what helped others, I suppose not everybody has to like running, but I know that I learned to like both seimming and running at some point when before it was dreadful.
* It helped me to learn a lot about running form, which would make going for a run interesting because there are so many things to observe about one‘s body and form while doing it. Like honing a difficult skill. Same for swimming.
* Finding an intellectual interest in learning about running helped me as well. If I want to do something for hours, I better be really interested in it… (e.g. Daniel Lieberman‘s work / Born to Run / watching races / learning about how athletes today can run so much faster than before, ultra running,…)
* Running without shoes sometimes is a much richer sensory experience and not boring at all.
* I still way overestimated what a proper pace would be for me, and only started slowing down and enjoying running more recently. I know the feeling of feeling shredded the next day, but that means the workout was too hard. It took me over a year to go from a pandemic/work induced low-point to enjoying 5k runs regularly, and I underestimated how slow and steady the change would be.
Can‘t emphasize enough how easy the easy runs should be. I can now enjoy 5k at a slow pace even though I could run 20k at a faster pace if I wanted to on any day.
* Finally, I think running is better with friends. [cf. Daniel Lieberman‘s work]