I'll try to suggest a few that isn't here already... lol
They're amazing alphas but be warned that sometimes they can be a big jerk like in "fever"or "heller" or "Kathleen Turner"...
Fever Series BY Karen Marie Moning
Night Huntress Series by Jeaniene Frost
Black Dagger Brotherhood Series by J.R. Ward
Heller by J.D Nixon
A Beautiful Lie and Because of You by Tara Sivec
Demonica Series by Larissa Ione
Kathleen Turner Series by Tiffany Snow
Inside Out Series by Lisa Renne Jones
On Dublin Street by Samanta Young
More than Meets the Ink by Elle Aycart
The Mighty Storm by Samantha Towle
And ALL the books by Kristen Ashley! She's the queen in this subject matter. And I know that she's already here, but I just wanted to remind you. lol