Weāve got an Axkid Move, which I really like. Itās ERF to 25kg. There is also the Axkid Minikid which is very similar but with more extras, eg headrest and straps adjust automatically, I think. I personally didnāt feel those extras were worth paying for but it depends on your budget and whether you may use the seat with any subsequent babies as well.
Most of the ERF seats use tethers as well as the seatbelt. If you plan to move the seat between cars, I strongly recommend an extra set of tethers!
We also looked at Britax (specifically the Max Way Plus) but I preferred the Move.
I would probably not buy a seat designed to take you through to age 12 for my own car (as opposed to buying it to use in a relativeās car) - and I say that as someone who did with DC1. My experience makes me feel that if you can afford a seat specifically designed for the stage you need it for, these seats are probably better rather than a seat trying to do multiple things at once, if you see what I mean.
We had a Joie Every Stage for DC1 for my parentsā car, which weāve been happy with, but itās a big bulky seat. We also had a Joie Stages for our own car for DC1 (bought before we owned said car and only previously used FF) - it is enormous in RF mode and we canāt fit it in our car. The Minikid is much sleeker.
In your position, Iād buy a good ERF seat to 25 kg and move them into a good HBB once they max out the seat.