Well can you recommend one?
Warning I’m not an expert but I have been shopping.
It is true aio coolers don’t cool that much better than high end air coolers (generally) and they can have more noise or less noise but either way it is close.
Water cooling does to better when the room temperature is warmer, they do have a lot more parts to fail.
All aio coolers are made by two companies one of which makes the majority of them. Generally speaking newer model aio coolers work better/quieter than older models.
People really appear to like Corsair a aio coolers for overall good performance and build quality or NZXT (guys who make the kraken) for lower cpu temps. Overall both vendors are very similar.
The cheaper stuff doesn’t work much differently than the more expensive stuff but could have more noise due to older pumps & cheaper fans.
I’ll give you the simple answer
Corsair & NZXT have best warranties, NZXT has complaints about thier pump control software being a pain.
Basically sub $100 USD you will have noise or less cooling but not by a large amount. Sort of thing you need to decide for yourself.
I want to go water just to try it out.