Mordenkainen's Tome of Foes.

In terms of pure damage numbers for Core-only, a straight Draconic Sorcerer is going to edge out an Evocation Wizard which edges out a Draconic Sorcerer/Dragon Disciple. Guildmasters' Guide to Ravnica. Astute historians of Dungeons & Dragons will point out that the wizard becoming the mage is as much a step back as a step forward.
Draconic Sorcerer gives a little bit of a melee edge, though not a big one. 1. Player's Handbook. But while you have the same number of spell slots as a Wizard, and have Metamagic at higher levels, you will not have the spell versatility that a Wizard does. The extra health and always-on Mage Armor does help with being up close and personal. Sword Coast Adventurer's Guide. Wizards can use all 3 on the same spell really hitting hard when you need it. The Evocation Wizard basically gets 3 that are significantly better. Sorcerer Spells. The Wizard can switch spells, knows more of them and can be more adaptable to the situation at hand.

The 3 levels of spellcasting Dragon Disciple causes you to lose are a significant hit to a blaster (CL = damage), while the class itself doesn't really gain you anything terribly useful to a blaster.
Acquisitions Incorporated.

One Grung Above. Dragon Sorcerer vs. Evocation wizard- our rival spell casters finally clashed as the campaign winds up Table Stories Ever since our campaign first started, we have had 2 spell casters who had this friendly rivalry since the beginning: a human dragon sorcerer with red dragon bloodline, and our fire genasi evocation wizard. Wizard vs Sorcerer is basically Utility vs Combat Effectiveness. +Sorcerers can only use 2 at once if once of them is empower. Dungeon Master's Guide. Volo's Guide to Monsters. Explorer's Guide to Wildemount. Mordenkainen's Fiendish Folio Vol. Now the next thought is multiclass to get the Wizard with 3 levels of Sorcerer to get 2 …

Eberron: Rising from the Last War. The Tortle Package.