Build a small tea setup around what you use
Start with the jobs that need doing: heat water, contain the leaves, separate them and drink. Add equipment only where something is missing.

Start with one drink you already make
It is easy to assemble a tea setup around attractive objects and then discover that none of them solves the awkward part of your morning. Begin with the drink instead. If you usually make one mug of loose tea, you need a suitable way to heat water, a heat-safe mug, space for the leaves to infuse and a way to remove them. A roomy basket and a small rest for it may do more for that routine than a second teapot. If you mostly use tea bags, even the basket may be unnecessary. Keep the arrangement close to the habits you actually have before planning a different style of tea drinking.
Identify the one frustrating step
Perhaps the tea is difficult to repeat because the leaf quantity varies. A small suitable scale could help. Perhaps the infuser is too small for the leaves to open, or its rim falls into the mug. Replacing that one piece addresses a clear problem. A timer is useful if you frequently forget the cup, while a serving pot matters more when several people share the same infusion. These additions have different purposes; buying them all at once makes it harder to tell which was worthwhile. Borrow or use an existing kitchen tool where possible, and check compatibility before choosing a replacement. A fine basket that does not fit your favourite mug is not an upgrade.
Leave room for washing and putting away
A useful setup includes the space needed after the tea is finished. Can you empty the leaves without scattering them, rinse the basket and let the pot dry with its lid off? Is the kettle cord clear of the wet area? Can you reach the tea without moving hot vessels first? Arrange dry storage separately from steam and splashes. Give the wet infuser a washable landing place rather than leaving it on the worktop. After a week, remove any item you have not needed and consider why. A compact collection can grow later around a particular interest, such as whisked matcha or small repeated infusions. There is no missing essential simply because someone else's tea table contains more pieces than yours.