Here is a Genshin Impact team guide article on how to build Tartaglia team comp including details of the team members and free-to-play team.
Tartaglia is a character that mostly deals DMG on EM Brust as well as EM Skill which can deal with more Hydro DMG and apply Hydro Element on enemies which makes it easier to put in any team comp.
Here is some team build that is suitable for him:
Tartaglia F2P - Electro Charged Team Comp
This free-to-play team is a great option for a player who doesn't want to spend Primogem or a newbie who doesn't have any 5-star characters. Even though, this is a F2P team you still can maximize his potential as well. This team focuses on maximizing Electro Charge DMG the team and by having Beidou as Sub DMG and Fischl to support which is an electro character and Bennett as ATK buff and healer.
- She is a Sub DPS who can apply massive electro DMG which can trigger Tartaglia to get Electro Charge reaction.
- Her OZ can apply continuous Electro attachment to keep triggering Electro Charge to enemies.
- Bennett Ult can buff enemies with health and ATK DMG boost to maximize Tartaglia as well as Beidou.
Tartaglia Vaporize Team Comp
This team comp focuses on maximizing Tartaglia's elemental DMG by creating Vaporize with Xiangling and Bennett to boost more ATK DMG with the support of Kazuha to help group up enemies and enhance DMG.
- Her Element Burst will apply surrounding enemies with Pyro even if she is off the field and switches Tartaglia to trigger Melt Vaporize.
- Provide DMG buff to all allies, reduce EM resistance, and group up enemies which makes it easier to create Vaporize.
Tartaglia Hyperbloom Team Comp
This team comp focuses on maximizing Hyperbloom DMG between Tartaglia and Nahida to create bloom and Kuki helps apply electro to bloom to create Hyperbloom reaction.
- Apply Hydro DMG attached with enemies and react to Tartaglia to create Bloom.
- Provides healing and she has an important role in applying electro to trigger Hyperbloom.
Tartaglia Perma Frost Team Comp
This team comp focuses on continuously creating frost reactions from Ganyu's Cryo and Hydro from Tartaglia.
- Apply Cryo DMG to react with Hydro attachment from Tartaglia to trigger Freezing.
- Provide a shield to protect teammates and in her C6 she will increase all party member EM.
End of Best Tartaglia Team Comp.