For those of you in the UK, IKEA currently has a steep discount on their GU10 bulbs. I’ve just picked up several dimmable, colour temperature controlled bulbs for £5 each.
They play nicely with HA via a sonoff dongle and ZigBee2MQTT, even down to firmware updates.
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Better than that, if you are after more than one (and with GU10s, who isn’t?)
This gives you 3 bulbs and a handy remote that also works with HA.