I can give you a few right off the top of my head:
Dani- sensitivehandsomeactionman
Sarah- jensenscomedyelbows
Liz- misswhizzy
Sarah (man, I have a lot of friends named Sarah)- patchworkgirlfriend
Joan- deansbeerbottle
And I know- I KNOW- that I’m forgetting a ton of good Dean-centric blogs and I’m going to feel awful when I remember other people I should have included later. So I’ll add on as I remember them and anyone who has a lot of Jensen and Dean on their blog should comment on here so I don’t miss anyone. I hope this helps!
EDIT: Yes, I knew it. I missed some I should have put in there right from the start.
demondetoxmanual is literally the first person I ever followed years ago on my multi-fandom blog. There’s lots of Dean and Jensen on that blog.
Linds is awesomely bibro: pathossam
Ana is terrific: twoboysandtheopenroad
And I’m still missing a bunch more so I’ll add on later.