What plaster do I need?

[Fastpedeller]

I'm about to remove some cracked plaster from a concrete lintel - Do I need to use Hardcoat plaster or Bonding plaster?
TIA

[Actual]

For patch up plastering and filling I use

British Gypsum Gyproc Easi Fill 60 Compound - 10kg
Product code: 117660
£32
From https://www.wickes.co.uk/British-Gypsum-Gyproc-Eas...
This is a plaster powder to mix up

Knauf Easy Plaster - 6L
Product code: 139062
£28
From https://www.wickes.co.uk/Knauf-Easy-Plaster---6L/p...
This is ready mix

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