While sorcerer bloodlines are a neat idea, the fixed nature of their bloodline spell list always seemed out of place given the chaotic nature of the class's power source, and makes many of them feel cookie-cutter.
Instead of a fixed list, I was thinking two to four different spells at each level, of which they pick one, similar to the crossblooded sorcerer.
For example:
Aberrant
1st—enlarge person, lesser confusion
2nd—see invisibility, hideous laughter,
3rd—tongues, call the void
4th—black tentacles, confusion
5th—feeblemind, telepathic bond
6th—veil, repulsion
7th—plane shift, insanity
8th—mind blank, antilife shell
9th—shapechange, etherealness
Abyssal
1st—cause fear, corrosive touch, ear-piercing scream
2nd—bull’s strength, acid arrow, shatter, darkness
3rd—rage, stinking cloud, deeper darkness, sheet lightning
4th—stoneskin, acid pit, unholy blight, shout, fear
5th—dismissal, cloudkill, caustic blood, magic jar, telekinesis
6th—transformation, greater dispel magic, true seeing, chain lightning, banishment
7th—greater teleport, blasphemy, hungry darkness, ethereal jaunt, plane shift
8th—unholy aura, rift of ruin, horrid wilting, greater shout, stormbolts
9th—summon monster IX, crushing hand, transmute blood to acid, wail of the banshee
Arcane
1st—identify, mage armor, magic missile, shield
2nd—invisibility, gust of wind, levitate
3rd—dispel magic, fly, haste, arcane sight
4th—dimension door, lesser globe of invulnerability, resilient sphere, greater invisibility
5th—overland flight, break enchantment, telekinesis, teleport
6th—true seeing, greater dispel magic, disintegrate, globe of invulnerability
7th—greater teleport, forcecage, prismatic spray, limited wish
8th—power word stun, maze, telekinetic sphere, protection from spells
9th—wish, mage’s disjunction, prismatic sphere
Celestial
1st—bless, divine favor, protection from evil
2nd—resist energy, aid, consecrate, zone of truth
3rd—magic circle against evil, searing light, daylight, remove disease
4th—remove curse, deathless, holy smite, discern lies
5th—flame strike, cleanse, dispel evil, hallow
6th—greater dispel magic, greater heroism, globe of invulnerability
7th—banishment, holy word, greater teleport, raise dead
8th—sunburst, holy aura, divine vessel (angelic only)
9th—gate, heroic invocation, overwhelming presence
Destined
1st—alarm, embrace destiny, moment of greatness, karmic blessing, divine favor
2nd—blur, augury, grace, protection from arrows
3rd—protection from energy, channel vigor, heroism
4th—freedom of movement, death ward, divination, blessing of fervor
5th—break enchantment, cleanse, contact other plane
6th—mislead, find the path, greater heroism
7th—spell turning, vision, temporary resurrection
8th—moment of prescience, nine lives, prediction of failure
9th—foresight, freedom, heroic invocation
Draconic
1st—mage armor, detect metal, magic fang, burning/freezing/caustic/shocking hands (depends on dragon type)
2nd—resist energy, arcane lock, locate object, darkvision, flaming/freezing/caustic/shocking sphere (depends on dragon type)
3rd—fly, discern value, arcane sight, nondetection, suggestion
4th—fear, scrying, stoneskin, dragon’s breath
5th—spell resistance, covetous aura, mage’s private sanctum, passwall
6th—form of the dragon I, guards and wards, analyze dweomer, word of recall
7th—form of the dragon II, greater arcane sight, mass fly, instant summons
8th—form of the dragon III, dimensional lock, discern location, demand
9th—wish, shapechange, overwhelming presence
Fey
1st—entangle, charm person, faerie fire, charm animal, tap inner beauty
2nd—hideous laughter, seducer’s eyes, glitterdust, tree shape
3rd—deep slumber, nixie's lure, dominate animal, plant growth
4th—poison, confusion, charm monster, kiss of the first world
5th—tree stride, dominate person, wall of thorns, awaken
6th—mislead, cloak of dreams, liveoak, transport via plants
7th—phase door, project image, animate plants, control weather
8th—irresistible dance, mass charm monster, control plants, demand
9th—shapechange, etherealness, dominate monster, shambler
Infernal
1st—protection from good, infernal healing, charm person, burning hands
2nd—scorching ray, undetectable alignment, unnatural lust, minor image
3rd—suggestion, fireball, vision of hell, glibness, tongues
4th—charm monster, minor creation, hellmouth lash, greater infernal healing
5th—dominate person, major creation, damnation stride, persistent image
6th—planar binding (fiends only), hellfire ray, mass suggestion, geas/quest
7th—greater teleport, delayed blast fireball, temporary resurrection, limited wish
8th—power word stun, demand, trap the soul, mass charm monster
9th—meteor swarm, dominate monster, wish, soul bind
Imperious
1st—moment of greatness, command, charm person, shield
2nd—eagle’s splendor, levitate, shatter, protection from arrows
3rd—heroism, haste, fly, agonizing rebuke
4th—threefold aspect, lesser globe of invulnerability, flame strike, discern lies
5th—greater command, dominate person, wall of force
6th—repulsion, globe of invulnerability, greater heroism
7th—greater age resistance, fire storm, control weather
8th—prediction of failure, demand, earthquake,
9th—overwhelming presence, storm of vengeance, mage’s disjunction
Stormborn
1st—shocking grasp, shock shield, feather fall
2nd—gust of wind, defensive shock, gusting sphere,
3rd—lightning bolt, fly, storm step, sheet lightning, wind wall
4th—shout, ball lightning, hurricane blast, river of wind,
5th—overland flight, lightning arc, fickle winds
6th—chain lightning, path of the winds, wind walk
7th—control weather, mass fly, scouring winds
8th—whirlwind, stormbolts, greater shout
9th—storm of vengeance, ride the lightning, winds of vengeance
Undead
1st—chill touch, ray of enfeeblement
2nd—false life, command undead, desecrate
3rd—vampiric touch, halt undead, ray of exhaustion, lesser animate dead
4th—animate dead, enervation, greater false life
5th—waves of fatigue, undead anatomy I, ghoul army, unhallow
6th—undeath to death, undead anatomy II, create undead, circle of death
7th—finger of death, undead anatomy III, control undead, waves of exhaustion
8th—horrid wilting, create greater undead, undead anatomy IV
9th—energy drain, soul bind