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For OSC and DSLR cameras in a Newtonian Reflector at focal ratio f4 to f6 , the 2” ALPT dualband filter ( 5nm Ha 5nm Oiii ) or 2” Optolong L Ultimate dualband filter ( 3nm Ha 3nm Oiii ) will do a suburb job under heavy light pollution when imaging emission nebula ( useless for galaxies , globs and reflection nebula , screws up your colour ) Star halos shouldn’t be an issue.
Just screw the filter on the end of your coma corrector. It will change focus a bit but not f ratio.
I used the Antlia ALPT with my 2600MC in 6” , 8” and 10” Newts for a few years and it was significantly better than the L Extreme, which caused obvious halos. I started with screwing the filter on the end of my TS GOU coma corrector but then changed to a ZWO filter drawer for OSC cameras.
Good luck with it
Martin
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