I use LTW-5630AQL30 by LITEON.
They are available in EU here:
https://www.tme.eu/sk/en/details/ltw-5630aql30/smd-white-leds/liteon/
I am not sure about resellers for other regions.
Search on google for
LTW-5630AQL
Let us know, if you have found some good source of diodes.
LTW-5630AQL:
Dimensions: 5,3x3x0,9mm (5,6x3x0,9mm with pads).
LED colour: white warm
LED current: 120mA
Power: 656mW
Operating voltage: 2.9...3.3V
Datasheet:
https://www.tme.eu/Document/2d5f626e9d07529890db41d612b16b95/LTW-5630AQLxx.pdf
You can find some compatible LEDs on Aliexpress.
Search for
5630 smd
Most of the Aliexpress diodes are described like 5630/5730 SMD LEDs.
This one, for the example:
https://www.aliexpress.com/item/1005002763810148.html?spm=a2g0o.productlist.0.0.11d4190eeJvsVL&algo_pvid=508b7490-b140-4d0d-82fb-76af13716faf&aem_p4p_detail=2021092208300810828108496229050000949982&algo_exp_id=508b7490-b140-4d0d-82fb-76af13716faf-1&pdp_ext_f=%7B%22sku_id%22%3A%2212000022075238859%22%7D
As they say - there is SMD5730 chip.Size is 5,7x3mm, so they are compatible.