Hill Dwarf + Tough + Draconic Sorcerer

https://www.reddit.com/r/dndnext/comments/ma4ooo/can_hill_dwarf_draconic_sorcerer_be_a_competent/ https://forums.giantitp.com/showthread.php?539734-making-an-immensely-tough-sorcerer https://www.dndbeyond.com/forums/class-forums/sorcerer/111344-is-draconic-sorcerer-a-good-swordmage-gish

Abjurer Wizard with Warlock? Mage Armor + Armor of Agathys

Svirfneblin (deep gnome) Abjuration wizards, with the Svirfneblin magic feat at level 4 is quite tanky.

Wild Magic Sorcerer instead?