Complete rookie alert - I have been interested in photography for over thirty years but never tried developing and printing.

I'm considering setting up a darkroom in a spare room and wanted some advice about a suitable enlarger.

I mainly shoot 35mm but it would be good to get an enlarger which is also usable with 120 roll film and possibly 645 format if possible or at least is easily upgradable.
I'm thinking B&W to start with.

Any recommendations or advice would be welcome so I can do some more research - and so I don't end up with a lemon