Mind of tempest
(he/him)advocate for 5e psionics
you not quite there, not simple spells full level 5 casting.Hmm, well you could create something similar to the Hexblade or the Spellblade. A primary melee class, who can use simple spells to enhance his attacks.
it lets you have more opportunities as a skirmisher or solve problems if you a tank or keep people at range if your speced for archery.
it both has interesting ways of fighting and at lest something of a story and stands apart from ranger and paladin for how it gets armour.
so it has at least sufficient basic differences that it could be the class people endless try to make but never succeed at a new half caster