In order to build their character out, in fantasy roleplaying games they most likely require magical items. Sometimes players know what they want beforehand and simply asking what they want can help you let the player enjoy this campaign which is what roleplaying is all about.
If you don’t want to ask them directly for specific items, you can ask which types the player would like to receive. This could be utility, combat oriented, enhancing defence, or many more.
Reference
E. Schea, M. (2018). Sly flourish’s return of the lazy dungeon master. Sly flourish shop
Highlights or timestamps
Return of the Lazy Dungeon Master Highlights
- Ask the player what type of [magic] items they want.
— ^5e6787 from Return of the Lazy Dungeon Master highlights