In an effort to get some discussion going here, I am putting up this post! The question is in the title. I tend towards the following:
Frigg: really the goddess I connect with most, as family is an important thing for me. I don't adhere to any kind of patron concept, but if I did, Frigg would be the one. She is one of the few beings I've made an oath with.
Thor: the idea of the protector and friend of humanity is powerful. Always ready to lend a helping hand.
Odin: the lessons Odin has taught me are painful, but necessary. Often like being hit with a truth brick to the face. This is my experience when I delve deep into the worship of Odin.
Freyja and Týr: I tend to connect with them on a less personal level, but I do consistently make offerings to them.
I also sometimes venerate Eir, and right now I'm focused on the dísir that binds both sides of my family together.
Decentralizes yes, but at least currently doesn't use activity pub. Or at least that was the state last time I checked. They're developing their own protocol.