Hi Welcome to the forum and Good Shooting!
Either you need to see someone good who can check the fit of your gun or if you are ready to move on then you need to go somewhere where you can try anything that you like the look of.
We usually recommend secondhand Beretta's, Browning's or Miroku's but it depends on your budget.
I know that you can have a few shots to try out a gun at Ladds of Crediton.
The above is based on a quality secondhand gun being better value than a cheap new gun which will have very little resale value as you lose at least the VAT and dealer's margin straightaway.