http://aonprd.com/MysteryDisplay.aspx?ItemName=Ascetic Ascetic Mystery grants spellstrike to Oracles' fists, but they're Divine
https://www.d20pfsrd.com/classes/hybrid-classes/arcanist/archetypes/paizo-arcanist-archetypes/blade-adept/ Blade Arcanists are pretty much Bladebound Magus but squishier and with a better spell list 

Spiritualist is psychic but has two archetypes that grant spell combat

But tbh Magus is your best bet as far as mechanical viability and vibe go for first party products. 

There's martial spellcaster archetypes (Child of War, Eldritch Scoundrel) that exist as well, though they don't fit what you seem to be looking for.