Any easy methods to max Insight?

The problem with that is finding 2 other people willingly to PQ with on a daily consistent basis.

That's true. Personally, I do not find this method to be worth it since the PQ and finding other like-minded people is an headache in itself but it's worth considering for people who actually do PQs.

Then again, most people seem to hate this PQ the most so the Dimensional PQ might be better as it's easier to complete though that only gives 20 Insight.