Haier is considered the most reliable amongst the Chinese brands when it comes to fridge. Should be ok

The LG is using Smart Inverter.... should be conventional inverter instead of linear one

Personally I'm using Hisense side by side. 7 months in so far ok

Not sure where you heard that from but they do have a service line here, maybe its just outsourced to third party at worse case. Anyway not a concern to me because their fridges are usually cheaper compared to other brands of the same size and spec. As long it can last minimum 5 years (fingers crossed) without issues then its fine to me. If you are concerned then purchase extended warranty from the shop as well

First you need to determine the spacing for your fridge. I ended up with Hisense because its the only model that fit my space perfectly in terms of depth and of course budget wise its cheaper