Battering blast is a 3rd level force spell so just outside what you can cast now, and it takes until ~character level 7 to really take off, but it features in absurd damage builds. Since it uses ranged touch attacks it works a bit differently to magic missile.
Anyway you're going to want the spell specialization feat. Note that you can switch the spell specialised in each level, it doesn't have to be fixed to MM. Varisian/mage's tattoo is also an option. You want metamagic reducing traits if you're going for dazing and/or toppling spell.
Wizard is the obvious best class. Arcanist is possible too.
There is an aether wizard school that might interest you.
Aether
No VMC, you're going to want feats. Evocation school for extra spell slots in that school is obvious; you can run out of blast spells disturbingly fast. If your group tends to run short adventuring days there are other options.
Edit: OK, aether elemental school works too as the others point out.
Aether School wizard?
if you don't mind being barred from opposition schools entirely (and are OK with evocation as your specialised school) Thassilonian wizard is possible, but vanilla is fine and better rounded.
Your traits are at least one of the metamagic reducers on magic missile, two possibly. Feats could go
1: spell focus (evocation)
Human: spell specialization
Wizard: scribe scroll
3: toppling spell
Magic missile now. Battering blast from charcter level 7 (when you can use Varisian tattoo and spell specialization to make it caster level 10). It's been too long, I can't remember D&D force spells or whether they might be better.
Magic missile now. Battering blast from charcter level 7 (when you can use Varisian tattoo and spell specialization to make it caster level 10). It's been too long, I can't remember D&D force spells or whether they might be better.
I think thats the big argument for aether specialist, it adds a few higher level force spells from the psychic list to your wizard list.