I’m looking for a vacuum cleaner that doesn’t need dust bags and gets its power from the wall socket with a cord. The suction power has high priority for me
Edit: thankyou all for the recommendations, I appreciate it!
I realized, although vacuums with bags are in the daily financing more expensive I guess, but that they are more reasonable in my case
I will second this.
First off bags are better in terms of filtration and release when emptying. OP you asked for best, well best uses a bag system.
Second the Miele C series is basically a tank. A true buy it for life item that will last decades if you take good care of it.