Cleric with Improved Familiar?

[Mechanical Pear]

I'm looking for, preferably, a domain that gives me a familiar.

I saw Eagle domain, but I don't know if clerics can pick it up. And if, then, I qualify for Improved Familiar.

I could pick up a prestige class, but all I saw was Diabolist (which gives me an animal companion Imp, instead of a familiar), and Star Gazer. Are there any others?

I don't want to burn feats.

If this can be done as an oracle, that'd work too, but first I'd have to find a way to get an alignment aura like a cleric has. Neutral Evil.

EDITED TO ADD:

I'd want the familiar to be able to UMD. That's the whole reason.

[KingOfAnything]

Something like the Asmodean Advocate archetype for Asmodeans or the Fiendish Vessel archetype for tieflings?

[Melkiador]

A cleric of Besmara can trade a domain out for a familiar.

It's questionable, but a separatist cleric may be able to choose from the Druid domains.

[Mechanical Pear]

Asmodean Advocate doesn't stack with Herald Caller, which is what I was wanting.

Fiendish Vessel would be nice, but I was really wanting Human for the extra feat.

Plan was a summoning neutral evil creatures, and VMCing bard to buff them.

I might try to work out Fiendish Vessel, but it sounds real nice having Sacred Summons and Summon Evil Monster at level 1.

[Mechanical Pear]

Ugh, if I wanted a NE Aura (which I do), even Fiendish Vessel doesn't help. It gives me a cacodaemon familiar, which can't UMD.

[Markov Spiked Chain]

To answer part of your question, you can take Improved Familiar if you get a familiar with cleric levels. Here's the FAQ clarifying this.

[graystone]

Wasp Familiar feat.

Demonic Apostle archetype.

[Bearserk]

I second the Seperatist and would suggest the Monkey Domain with the Decoy familiar archetyp for UMD!

No need for Improvment...^^