Which device allows you to upload maps

Depends whether you really need true maps, or whether the navigation with simplified maps would satisfy you.

In the second case, some models of the first edition of Instinct can be found for less than 130€ (new). For example here: https://www.cdiscount.com/destockage/destockage-telephonie/garmin-instinct-esports-edition-montre-cardio-gp/f-1250204-occ0s9lc5wgi77k.html - it is the eSports edition, but it is in fact a full-featured Instinct with some added functionality for gamers. Navigation is included. Not sure whether you can find a new watch from Garmin for less money.

Great thanks. Is the Instinct good for run tracking, blood pressure etc? And what about other sport activities, walk, yoga, weights etc

There is currently no Garmin watch measuring blood pressure. Instinct is OK for running, as well as for other sports. You best check the specifications, and google some reviews to find all the fine details. However, if you need some advanced functionality for running, like VO₂max, Training Status, etc, then there are plenty of better watches available. They are also more expensive, though.