Any need for Phono stage with Brio

Since you're pleased with your current system, your phonostage is fine. I agree with @viridian that a new  cartridge will be the most dramatic upgrade.

@viridian and @lowrider57 which one would you recommend I look at when the time comes?

I listen to a various array of music, a lot are second hand and the others are new. Range from Jonathan Wilson to Dance to Elton John and Blue Oyster Cult etc.. I do use a record cleaner too. Stereo and Mono.

I guess a budget would need to be set as the choice could out cost the system?