Going Ranger level 5 and Pact of the Blade Warlock level 7 will give you the best of both worlds. You will have 3 attacks (by level 10 if you are 5/5 levels in each class) and both Eldritch Blast and melee attacks will benefit from your high Charisma. If you went with Gloom Stalker for your Ranger subclass, you can get 4 attacks in the first round of combat! Dialogue options will also benefit from High Charisma if this is your main character.
"He that can smile at death, as we know him. Who can flourish in the midst of diseases that kill off whole peoples. Oh! If such a one was to come from God, and not the Devil, what a force for good might he not be in this old world of ours."
-Bram Stoker, Dracula
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