Here is what I got so far for myself that I'm planning. I think this is the best route for me, I could get some extra goodies going lvl 9 Monk but screws up my defensive spell list. So I'm keeping it lvl 8.
This is more of an Ice build. Could be better if using ice block and tavern brawler maybe but I didn't include it in this build and it also requires strength going that route.
My Build
Sorcerer 4/Monk 8
(Start as Sorcerer)
Act 1 -> 2
Stats
STR= 8 + (+2 Stat Potion)
DEX= 17 + (+1 Res.)(+2 Ability)
CON= 14 + (+2 Ability)
INT= 8
WIS= 15 + (+1 Hag Hair)
CHA= 12
AC= 18
Bonus
Dexterity ++
Wisdom +
Proficiency
Dexterity (Resilient: Dexterity)
Constitution
Charisma
Background
Entertainer (Acrobatics, Performance)
Skills
Insight
Persuasion
Feats
04 Resilient: Dexterity (DEX +1)
04 Ability Improvement (CON +2)
12 Ability Improvement (DEX +2)
Lvl 4 Sorcerer - Draconic Bloodline
SP= 4
Passives
Draconic Ancestery: White (Cold)
Draconic Resilience: Hit Points (+4)
Draconic Resilience (Doesn't Stack)
Cantrips
Blade Ward
Friends
Firebolt (Twinned Spell)
Bone Chill (Twinned Spell)
Spells
Armor of Agaths (Ancestery: White)
Shield (Reaction)
Misty Step
Blur (Concentration)
Mirror Image
Enlarge/Reduce (Concentration)
Actions
Create Sorcery Points
Create Spell Slot
Metamagic: Distant Spell (Toggle)
Metamagic: Twinned Spell (Toggle)
Metamagic: Quickened Spell (Toggle)
Lvl 8 Monk - Way of the Four Elements
Ki= 9
Passives
Unarmoured Defence (WIS)
Martial Arts: Dexterous Attacks (DEX)
Martial Arts: Deft Hands
Martial Arts: Bonus Unarmed Strike
Unarmoured Movement (+3m)
Deflect Missles (Reaction)
Harmony of Fire and Water (Action)
Slow Fall (Reaction)
Extra Attack
Improved Unarmoured Movement (+4.5m)
Ki-Empowered Strikes
Evasion
Stillness of Mind
Spells
Blade of Rime (DEX)
Sphere of Elemental Balance
Water Whip (DEX)
Embrace of the Inferno
Actions
Flurry of Blows
Patient Defence
Step of the Wind: Dash
Step of the Winds: Disengage
Stunning Strike (Melee)
Stunning Strike (Unarmed)
Gear Act 1
Head= Haste Helm -> Cap of Wrath
Body= Armour of Uninhibited Kushigo
Cloak=
Gloves= Bracers of Defence (+2 AC)
Boots= Disintegrating Night Walkers
Amulet= Amulet of Misty Step
Ring= Ring of Elemental Infusion
Ring= Ring of Protection (+1 AC)
MW= Mourning Frost (Ray of Frost)
RW= Bow of the Banshee
AC= +3 (21)
Gear Act 2
Head= Coldbrim Hat
Body= Armour of Uninhibited Kushigo
Cloak= Cloak of Protection (+1 AC)
Gloves= Bracers of Defence (+2 AC)
Boots= Disintegrating Night Walkers
Amulet= Amulet of Misty Step
Ring= Snowburst Ring
Ring= Ring of Free Action
MW= Mourning Frost (Ray of Frost)
RW= Darkfire Shortbow (Save Tieflings)
AC= +3 (21)
Gear Act 3
Head= Coldbrim Hat
Body= Vest of Soul Rejuvenation (+2 AC)
Cloak= Cloak of Protection (+1 AC)
Gloves= Gloves of Soul Catching
Boots= Disintegrating Night Walkers
Amulet= Amulet of Greater Health (=23 CON)
Ring= Snowburst Ring
Ring= Ring of Free Action
MW= Mourning Frost (Ray of Frost)
RW= Darkfire Shortbow (Save Tieflings)
AC= +3 (21)
Act 3: Respec
Sorcerer 4/Monk 8
(Start as Sorcerer)
Stats
STR= 8 + (+2 Stat Potion)
DEX= 17 + (+1 Res.)(+2 Ability)
CON= 8 + (=23)
INT= 8
WIS= 15 + (+1 Hag Hair)(+2 Ability)
CHA= 16
AC= 19 (22)
Bonus
Dexterity ++
Charisma +
If Hag Hair Bonus is lost.
Stats
STR= 10 + (+2 Stat Potion)
DEX= 17 + (+1 Res.)(+2 Ability)
CON= 8 (=23)
INT= 8
WIS= 16 + (+2 Ability)
CHA= 14
AC= 19 (22)
Bonus
Dexterity ++
Wisdom +