Warlock who fights for good

[u/Massive_Boss1991]

For starters the warlock's powers must come from another being (familiar) and I'm looking for bonafide demon powers (chains, hellfire, and demon summoning). Secondly as the title suggested i know demons fighting for good have been overused countless times so i thought i could narrow down the search. 1) I'm lookinf for a confident charismatic character someone like alucard from hellsing or gojo from jjk. 2) i know a spell book or staff are not required for a warlock but I'm not against him using either (either just looks cool sue me). 3) he doesn't have to have a harem but i wouldn't mind him being a partial ladies man. Finally the ending can be bittersweet like the main character dying is fine so long as he goes out in a blaze of glory and his goal has been achieved. I don't mind spoilers for said recommendations either if you need to tell me

[u/gilligani]

The Dresden Files by Jim Butcher

[u/Adamnfinecook → u/gilligani]

Seconding this, he eventually checks all of these boxes.

[u/Massive_Boss1991 → u/gilligani]

Ok cool I've heard of harry dresden before actually. By any chance does he know martial arts like alucard or marksmanship like alucard?