Need help deciding alt char

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So I've only ever played Necro to max level on live back in roughly 2001. Just started P99 again and have done enchanter and like it but I'm looking for some advice on what class to play from here. Having done necro and enchanter I know 100% that I don't want to play a pet class. I've obviously read up and played in groups with all classes but would appreciate some perspectives of other classes and why people enjoy them.

These opinions will apply to Green which might effect the outcome due to melee being weaker.