Not sure I would go from the 4BW to Camaro SS 1LE. I have owned both as well as a ZL1. The only benefit of the Camaro SS 1LE would be the V8 exhaust note. The rest is a downgrade including the tech, visibility, practically, trunk opening, seating position, etc. The 4BW has a better dash cluster, the mag ride 4.0 is better as you can actuality feel a difference between the modes, nicer interior, steering wheel, V-Mode, features, etc. The performance between the 4BW and SS1LE is very similar. Many refer to the 4BW as the 4 door Camaro SS 1LE with a TTV6.
I would try something different. A lighter weight car will offer a lot of fun on the street. Miata is the best but if you can't fit then a GR86 is quite fun to hoon around town. C7 Corvettes are nice but not much performance difference vs. the 4BW unless you go for a Z06. My 4BW is just as quick as my C7 GrandSport.
Dodge Scat Packs and Hellcats are just ok, engine is cool but too big and handling blows compared to 4BW and then you get Dodge reliability and fuel costs. GR Corolla sounds fun but $45k-50k for a Corolla is hard to get your head around. Both the Honda Civic Type R and Acura Integra cost too much for front wheel drive and they are just Civics at the end of the day. Supra is ok if you are a BMW fan. Mustang feels like a downgrade compared to a 4BW as well with that bolted on dash display. Again similar performance to your 4BW.
The reality is that the 4BW is a such a great performance car since it does so many things well. Cadillac just has a branding problem.
I will probably get flamed for this but the new Tesla Model 3 Performance is a great bang for the buck now. $53k minus 7,500 tax credit if you qualify. 0-60mph in 2.9, includes adaptive dampers and sports seats now, big brakes, track modes. Instant torque is great and they are pretty nimble with the LCG battery. Depreciation has been pretty bad but at this price the performance and tech are hard to beat.