If I leave bulb who should I switch to?

Thinking of leaving bulb after hearing news about possible collapse. Also not happy that they won’t let me change direct debit and hold too much in credit.
Which company should I switch to? Does anyone have experience of octopus, eon or shell? Would you recommend? Is one cheaper than rest?

Most suppliers aren’t encouraging switches at the moment, so you may find it difficult to move. Octopus require you to call them but most are being told they can’t switch and recommend you stay with your existing provider. For variable tariffs all suppliers are more or less charging the price cap at the moment, so you’re unlikely to find one much cheaper than any other.