I too prefer F1 to have a lot of European races but certainly not ‘stick’ to Europe. There are some fantastic non-European tracks that should (and hopefully will) remain.
To these I would like to add ONE (but not two) F1 race in the USA. Austin & New Jersey can alternate if they wish.
Of the other current F1 circuits, IMO Bahrain, Singapore and Korea should be eliminated from the calendar. I have mixed feelings about India but on balance, I feel that it should go too. China will stay considering its position in the world today and Abu Dhabi too for the setting.
Of the present European countires NOT hosting an F1 GP, the most obvious return would be France but I would prefer it to be at Paul Ricard (with that straight straightened again) rather than Magny-Cours. I am not in favour of a second race in any one country and so that takes Imola, Jerez and Valencia out. But I would like re-introduction of a “European” Grand Prix, perhaps alternating between the A1 ring in Austria and a refurbished Estoril.