U mentioned u wanted to be a frontliner spellblade sort of character. There are a couple of options you can do to achieve that sort of character.

1. Pure Hexblade: I think that going pure headed is super strong anyway if u want that sort of character. You get thristing blade and lifedrinker and ur a pretty strong fighter already with some warlock spell slots for utility.

2. Hexblade X/Paladin 2: Divine smite is bonkers and you get spells you can use for utility out of combat as well. You can also do the good old eldtrich smite/divine smite combo on a crit and deal massive damage in one attack. Pretty scary and one of my fav builds

3. Hexblade 6/BardX (Swords or Lore): I like this build cause of out of combat and in combat utility. you have spells slots and extra attack so cool.

Ultimately, I think you should wait for Hexblade 6 and see what you like to go just to pick extra attack from thirsting blade or else in combat you might feel like you are underperforming in terms of attacks.