Doesn't need to be that expensive, but it should be 3x the price of the one currently on there.
The KMC Z1eHX Wide EPT looks appropriate to me, but I didn't look for longer than a minute. It's a question of whether the wide format fits up front where your chainring guard is. Probably will.
EDIT: I just noticed your bike is not a mid drive e-bike. You have much less to worry about. Still looks like it needs to be fixed up to be made pleasurable to ride but my whole concern about it being an e-bike with tons of torque is invalid.
Doesn't need to be that expensive, but it should be 3x the price of the one currently on there.
The KMC Z1eHX Wide EPT looks appropriate to me, but I didn't look for longer than a minute. It's a question of whether the wide format fits up front where your chainring guard is. Probably will.
EDIT: I just noticed your bike is not a mid drive e-bike. You have much less to worry about. Still looks like it needs to be fixed up to be made pleasurable to ride but my whole concern about it being an e-bike with tons of torque is invalid.