Tough question to answer. Mostly depends on where ya want to live.
9000 hours in the EMB 145 and it's still my favorite airplane but I never flew the others. I wouldn't say it's a "terrible airplane". I miss the simplicity. I left Envoy years ago and it was good to me. I would stay away from small fleets. When I was there the CRJ was a small fleet(but senior) so schedules were limited. Trading and available open time is smaller in small fleet aircraft. Sometimes small fleets can be good if it's junior because you can get Christmas and the vacations /weekends off if that's your thing. It's too complex to explain it all. I think going with a flow regional is a smart move. You can always apply off the street at other airlines.