Sorcerer is a good Stamina Healer. There is nothing you can‘t do which Magicka Healer can. We use the same sets, but the play style is different as we use martial weapons for healing (Bow and/or Greatsword) and de-buffs (DW and 1H&S).
This build provides massive Damage Shields via
Smash,
Banner Bearer,
Ozezan the Inferno Monster set and Sorcerer Class Masteries.
Torchbearer provides purge, solid heal, and Minor Heroism.
Smash provides Minor Berserk – basically our Combat Prayer. Use
Vault as the out of jail card from large AoE and to heal allies inside it.
Hurricane and
Power Surge should always be up.
Bound Aegis can be replaced with some other skill.
Monster sets:
Sentinel of Rkugamz is the best for beginner.
Alternative body sets:
War Machine is the best for boss encounters, and for trash, too if you can quickly build up Ultimate.
Apocryphal Inspiration can be used in normal PUG or guild progression trials only if group needs sustain otherwise it's not worth it. Unfortunately Stamina Healer/Support set
Phoenix Moth Theurge is useless in PvE as it triggers on healing and not overhealing plus Minor Force is useless, too as it's easily sourced by DDs. If ZOS one day changes to triggers on overhealing and to provide Minor Berserk instead Minor Force, or replace both Minor buffs with Major Courage, it would become the Stamina version of Spell Power Cure.