Best/most synergistic 2 origin feats for a human warlock? 5.5e

Plenty of experience in 5e, but this is my first time diving into 5.5e and building my first-ever warlock. Origin feats have piqued my interest. I've read through a few tier lists, but does anyone have insight into any feats that pair well/provide good synergy for a low-level character? So far I have my eye on Gathered Whispers from Ravenloft (all official sources are allowed), but I could be convinced to switch that up.