
SEBO
AIRBELT E3 Premium
Ultra-durable, 10-year warranty, but expensive with short cord.

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First a not on self empty systems. They are sort of a gimmick. Firstly, they usually can do a basic empty of the container but they are not effective at cleaning the internal filters of the stick vac, that still has to be done really regularly yourself. And many self empty systems are themselves bagless, which means you have an additional 2 or 3 filters to clean. Bringing the total maintainence burden up to 2 dust containers, 2 mesh screens, and up to 5 or 6 filters you have to clean every couple weeks yourself! In other words, they're often more trouble than they are worth. Secondly, no cordless vac is going to match the suction and durability of a corded vac. With that in mind, and if you're good with it lasting about 5ish years, here's what I'd look at. Models from LG, including their own self empty model which at least uses bags, so there's nothing to clean on the station. Dyson have a pretty poor reputation for reliability now, but if you can tolerate very poor customer support, models like the v11 are still decent. V8 is a good more budget end choice. Miele duoflex or triflex models are great choices too, better quality than the others I think with good performance, but pricy and with fairly small bin capacity. Avoid no-name or bizzarely named models on Amazon, avoid bissell, hoover, dirt devil, shark, tineco, etc.
We have had a xyz for seven years. Can still do the whole house (3brms) on a single charge. Came with two batteries whicu we alternate. Washable filters, it came with two which we wash and alternate. It's an LG Kompressor
Totally! We also moved away from Dyson as technology has really caught up, so when it's time to replace that one consider other brands. We got the LG Kompressor and it works very well.
We use the shark robot as maintainance cleaning, then have an LG kompressor for our primary cordless. It self empties, stores a lot of fur, and the battery is changeable so we can run it on high then swap to a fresh battery if it dies. It came with a mop scrub head which is a bit gimmicky but does work for spot scrubbing. It has a pet head for furniture too.
You want a bagged vacuum. I've had a Dyson, a Bissell, a Dyson knock off, the LG A9, the Miele Duoflex - all bagless and all very loud. My cats will scatter if I turn them on. My bagged Miele on the other hand... they don't even bother getting up from their naps.
I would spend an extra $100 to get the V10 or LG Cordzero from Costco because you can return it when it breaks and don't have to deal with Dyson's nonexistant support.
LG CordZero, has swappable batteries, some models have a dedicated dustbin on the charger, and it has a variety of tools for hard and carpeted floors. I've been using mine for 4 years now. The trigger is a bit better designed than the Dyson V7 I had before.
Love my CordZero too. It's so easy to maintain because the cyclone is fully washable and so are the filters. Build quality is leaps and bounds above Dyson.

SEBO
AIRBELT E3 Premium
Ultra-durable, 10-year warranty, but expensive with short cord.

Numatic International
Henry Canister Series
Budget king, super durable, but heavy and poor on carpets.

SEBO
AIRBELT D4 Premium
Durable, powerful, long cord, but heavy and pricey.

SEBO
FELIX Premium
Durable, powerful, good for allergies, but heavy with awkward attachments.

Miele
Classic C1 Cat & Dog PowerLine
Durable, powerful, quiet, but very expensive, short cord.

Ranked #1
SEBO - AIRBELT E3 Premium

Ranked #1
SEBO - AIRBELT E3 Premium

Ranked #1
SEBO - AIRBELT E3 Premium

Ranked #1
SEBO - AIRBELT E3 Premium

Ranked #1
Numatic International - Henry Canister Series

Ranked #1
Dyson - V15 Detect Series