Found a nice run from Gandui / Dixon to Lao Zi / Rand. Consumer Technology from Gandui to Lao Zi profit of 1,135 per unit. Gold from Lao Zi to Gandui, profit of 1,438 per unit for a total of 2,573 per unit round trip. Only 1 system between Gandui and Lao Zi, longest jump is 9.19. They both also seem to have a decent replenishment rate.
Edit: Only been interdicted once on the short runs, made a long run (5 hops) and was interdicted, immediately upgraded my FSD.