A lot of the korean brands have pretty good reviews. I’m using Ecomom. UV sterilisers are not a must, and they’re a lot more expensive then steam sterilisers. But they’re also convenient because they can dry the bottles/pump parts, they can store those things when not in use.. and you can even sterilise some toys and household items (using the UV function alone)
Haenim UV steriliser is good. UV steriliser saves you a lot of time as it can dry and sterilise at the same time.
Ours is Haenim. Uv sterilizer.. easy and practical!