Hello
I've just switched to Eon.Next because their Pledge Tariff is below the price cap and has no exit fees. It is saving me approximately £60 a month on our usage compared with Octopus (where we were before) and is still renewable.
If you want to change, this link will give you £50 in energy credit (as it will for me).
Hope it helps someone!
share.eonnext.com/super-river-52