C.205 might work for you too. It has a pretty good sustained climb rate, and decent amount of cannon rounds.
K-4, G-14, G-6, G-2.... especially with Gondolas if available, all well armed for buff interception, if incoming are low enough. Problem is, even if you get to them, you won't have much E to work with, and you won't have the advantage over the buffs.... they may just swat you back down. Often it's better to leave them their first pass and set up to hit them on their second.
It's much better, if you expect bombers, or learn to read moving dar bars from rear enemy areas as they move forward, to go up with enough fuel near a target you expect enemy buffs over and patrol for them. This gives you more plane options as well, like the 110, Mossie, Typhie, Tempest, 152.... whichever works for you.
If the MITSUBISHI J2M2 Raiden were ever added, it might be able to intercept mid-level bombers on short notice. 88mm FlaK 36 would be another option in the future.