Yeah, I would recommend the Ruger 9mm breakdown. Can take Glock, Sig and Ruger mags. PSA has them for $799.
https://palmettostatearmory.com/ruger-pc-carbine-9mm-m-lok-rifle-with-threaded-barrel-19122.html
I think you need BOTH!
O/U for clays and birds. Get a name brand, Benelli, Browning, Beretta. The knockoff's are good too.
Semi for home defense, zombies and all other stuff.
Semi, you cant beat Mossberg 930 tactical. Extended tube holds 8. Cheap and reliable.
Or if you really are...