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

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Now that Sears is mostly gone, I'm not sure if this is good advice, but the Kenmore canister vacs are a great budget ($100 to $200 cheaper) alternative to Miele. I own two. The first is from 1998 and a friend borrowed it and her kid vacuumed up a bowl of dog water and then let the vacuum sit for a week, so it makes a weird noise now - but it still works great as a garage/car vac. The second I bought in 2015, and it is still great. Motorized beater for rugs and carpet, floor and brush and crevice attachments, HEPA filter bags, HEPA filter on the exhaust, very easy to find third-party bags and parts. Manufactured by Panasonic, who also sells vacuums under their own name.
I love canister vacuums with filtered cloth bags and HEPA filtered exhaust. Panasonic makes Kenmore, and Meile is know to be great. My Kenmore has a motorized carpet attachment, and also floor and crevice and brush attachments. I'm pretty sneezy about dust and just cannot ever get a bagless vac again. I even empty our Roomba by sucking the dirt out of the Roomba's bin with the hose of the canister. I also vacuum the pre filters on our air filters/purifiers and window AC. Easy to get ceiling fan blades and tops of baseboards and under the bed. Also I've got two dogs and the canister isn't fazed by lots of hair like the bagless Shark was.
I love my Kenmore canister for this as it has the powered stair attachment and the canister also has a little stair catch so it sits fairly securely (and is quite stable) on a stair as I vacuum plus the hose is long enough that I really only ever need to sit it on one step above the landing usually and then one step from the bottom of the stairs and I can reach every step.
What I was just going to suggest. It's a huge part of the reason I love them.
I largely use bagged Kenmore canister vacuums for my business. They're easy to repair if needed and they have the mini power heads and the hard floor brush head and mini power head are stored in the lid. I don't let clients provide vacuums anymore, if they insist they can find another cleaner. I've dealt with too many clients that don't maintain their vacs over the years and its just not worth it anymore. Worst vacuums are anything bagless and anything upright.
Canister vacuum all the way. I used to have an old kenmore that I bought used. You need to get one with a power head for carpets and a hardfloor attachment. Or I have a shark now where the power head can be used for both. The only time this type of vacuum is a pain is when you are doing a house that's fully carpet, because it's a pull behind vacuum you need to kick it beind you as you exit the room.
I love my Miele. I got it on Wayfair for $399. The suction is incredible and so easy to adjust for different needs. However, it doesn’t have a motorized head, so it’s not great for rooms with thick wall to wall carpeting. But most of my houses have almost all bare floors and area rugs which it’s fine for. I also have an older Kenmore canister that does have a motorized head, does an amazing job but is sooo clunky, that’s why I went with the Miele
I've got a Kenmore canister vac that has the small electric brushroll that more or less does what this does, issue being you do then still have the big canister to worry about. Still though, works excellent on stairs, couches, and tight spaces.
Sadly no. It doesn’t come with a power head. I’d recommend looking at c1 cat and dog if you can extend budget a tad or a kenmore canister with a power head. Or a sebo Dart would also work really well.

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