At this moment or even in future patches, Fire/Ice/Lightning builds have no space for Sorcerer so you only option is to go dark or summon based.
A full summon build aka Sorcerer - Bokor - Necromancer is actually pretty good despite its negative stigma of being a botting build. You won’t really be standing there doing nothing and waiting for your summons to kill. You have to stack many debuffs (Desmodus + Necromancer Bane + Hexing + Corruption) for your summons, and also Riding + Morph to utilize your summon.
There are a few dark based builds which you could try
Sorcerer - Warlock - Shadowmancer/Bokor/Featherfoot
Warlock for AOE and the 3rd class for single target DPS. Bokor can benefit from Desmodus debuff and have a strong short CD burst with Damballa. Also it has Hexing which further benefit Warlock’s damage. Summons are always a plus. Featherfoot in future gives more Dark damage to cursed enemies which benefit Warlock as well. Kurdaitcha has insane DPS after the future changes. Shadowmancer is also going to get buffed in future although it is probably the more lackluster one now
Sorcerer - Necromancer - Featherfoot
Necromancer summons benefit from Desmodus debuff. Also, have tons of debuffs which makes it easier to trigger Featherfoot’s “Curses of Curses” attribute for Kundela Slash. Featherfoot is the premiere choice her because in future Corruption boosts Poison damage for Featherfoot skills.
Sorcerer is more of a filler class and not the main focus of many builds unless you go for a pure summon build. Not everyone can have a summoner build as strong as this link below