I haven't been following this two-year thread in its entirety. But, I want to add to it.
When starting a brand-new town, I suggest recording the Villager Personality Categories represented in your first five starting villagers.
The game will not give you a Smug or Uchi among your first five.
This means, of the six more primary Villager Personality Categories, one of them will not appear on Day #01.
Beginning on Day #02 will be the plots representing Personality #06 or a Smug or an Uchi.
If you're after a particular villager, and that villager's category isn't in your town on Day #01, and that villager isn't a Smug or an Uchi, the easiest way may be to slot that villager at No. 8 if you're not going to initially get him/her in Slot Nos. 6 or 7.
So, for example, let's say you so badly want Stitches. His Lazy category is not represented in your brand new town immediately on Day #01. You don't find his plot on Day #02, because you use apparent new humans to search for a random villager plot which, after numerous attempts, are a mix of Lazy, Smug, and Uchi…none of whom are Stitches. I figure, given this circumstance, it's best to take the Smug and Uchi at Nos. 6 and 7 (whichever exact order)…and then you can hone in on the Lazy category to become slotted at No. 8. So, Day #02 will be your No. 6 villager's plot. Day #04 will be your No. 7 villager's plot. And Day #06 is the day to hone in the Lazy bear cub Stitches who would end up slotted No. 8 on your menu list of town villagers.