If Clara is the complete package as a tank and DPS, Tingyun is the complete package in every aspect except healing.

Source: https://gamerant.com/honkai-star-rail-hoyoverse-every-playable-character-and-path-ranked/

In this instance, players may also utilize Tingyun; however, they will need to choose who to buff based on the situation at hand, since both Luka and Serval can essentially benefit from her buffs.

Source: https://gamerant.com/honkai-star-rail-luka-team-comp-composition-guide-best-character-pair/

It also has a higher base ATK than most of the other Harmony light cones of same rarity, allowing Tingyun to be able to buff the teammates with a higher number since she scales with ATK.

Source: https://gamerant.com/honkai-star-rail-best-tingyun-light-cones-ranked/

Tingyun is a SS-Tier supporting character of the Harmony Path who buffs Attack and Damage dealt all while replenishing Energy Gauges for Ultimates.

Source: https://screenrant.com/best-team-comps-tingyun-honkai-star-rail/