Here's the spell selection for my sorceress I am playing currently.
It's constantly evolving according to the current situation and, of course, a lot of the choices are based on my personal preferances, but it still might be useful for you.
Classes are Sorcerer 6 / Incantatrix 10 / ... (probably back to Sorcerer, but it's also possible to go into Archmage with a slight change in feats, or something else). Prohibited School for Incantatrix is Evocation (Necromancy would normally be a better choice, however, and the few necromantic spells learned after 6th level are easily replaced).
Spell selection from 1st through 20th level:
<- means swapping a spell out for another
/ denotes optional choices at this point
_1 - Detect Magic, Read Magic, Daze, Prestidigitation, Mage Armor, Color Spray / Charm Person;
_2 - Light;
_3 - Magic Missile;
_4 - Mage Hand, Scorching Ray, Mending <- Daze;
_5 - Ray of Enfeeblement, False Life;
_6 - Message, Fireball, Shield <- Color Spray;
_7 - Unseen Servant, See Invisibility, Suggestion;
_8 - Detect Poison, Polymorph;
_9 - Command Undead / Invisibility, Protection from Energy, Dimension Door;
10 - Arcane Mark, Dominate Person;
11 - Glitterdust, Magic Circle against Evil, Dimensional Anchor, Improved Blink;
12 - Planar Binding;
13 - Charm Monster, Fleshshiver / Hold Monster, Analyze Dweomer;
14 - Limited Wish;
15 - Telekinesis, Greater Dispel Magic, Greater Teleport;
16 - Greater Planar Binding, Starmantle <- Planar Binding;
17 - Spell Turning, Polymorph any Object;
18 - Dominate Monster, Persistent Image <- Dominate Person;
19 - Horrid Wilting, Shapechange;
20 - Shades / Summon Monster IX / Gate.
Of course, there are a lot more spells, which would be good choices, like Mirror Image, Resist Energy, Arcane Sight, Dispel Magic, Displacement, Gaseous Form, Slow, Stone Shape, Firebrand, Wall of Force, Wall of Stone, Contingency, or Evard's Black Tentacles.
In general going for a broad selection, with many spell, which are useful in multiple situations, but also some not so versatile spells to cover ones weaknesses (like the Command Undead above) are good, though the latter should only be very few. Also take a look at range and save type for spells, which could be used in combat, to have a decent selection here. This was one of the main reasons, why I picked Glitterdust+Protection from Energy over Resist Energy+Slow (the other was, that our bard picked up Slow

).
Feats to go with the above spell selection:
_1 - Spell Focus: Enchantment, Greater Spell Focus: Enchantment;
_3 - Iron Will;
_6 - Empower Spell;
_7 - Silent Spell;
_9 - Assume Supernatural Ability (Pixie, Greater Invisibility);
10 - Heighten Spell;
12 - Craft Wand;
13 - Quicken Spell;
15 - Fortify Spell;
16 - Twin Spell;
18 - Improved Initiative.
Quicken Spell can only be used in conjunction with Metamagic Spell Trigger or Instant Metamagic. If that is not enough, one could still learn Arcane Preparation at 15, of course. I'll see it once I get there...
Another good feat is Energy Affinity (anything but fire).
Bye
Thanee