You can use pillows to support your arms and body.
Work your finger an along the front wall, and feel around for an area that can be slightly spongier than the rest of the vagina.
It's just the fucking best to be honest.
I remember when I was a teen and I heard my peers talking about how vulvas smelled like fish, I absolutely refused to let anyone go down on me for years because of this.
Make it a point to incorporate eye contact.
If you're not into your partner's taste or want to taste something more fun, flavored lube is the way to go.