I've talked about anchor sounds a lot. The way I look at them is that they are sounds which could be used to drive the entire track. Synths, stabs, plucks, leads, that could carry a core melody and/or represent a big payoff moment in the song. They could also be the center of the breaks and used on the buildup.
Kinda like the synth from Miracle Maker by Dom Dolla, or that synth that plays in the pre drop of Headnoise (Get Hype) by Martin Ikin. These are iconic sounds that are memorable.
Taking next week off of presets since it's the holiday, but will make sure to post for you guys regardless. Thanks for all the love this year!