I recently pre-ordered the official Nintendo Switch carrying case https://www.coolshop.co.uk/product/nintendo-switch-game-traveler-deluxe-system-travel-case/AG54EX?utm_medium=affiliate#/,
and didn't realise it was releasing in June! So for now, this one looks decent and seems to hold a lot of the switch's accessories for a decent price, to temporarily keep it protected when out and about.
It's prime eligible but has free delivery on orders over £20. The case can hold the switch unit itself, the joycon grip as well as 2 joycons, and has room for other accessories. straps cover the switch tablet itself, as well as the controller grip to keep them held in place. Mine is arriving today so will update this post with a comment on the build quality and overall protection.
Have a nice day all :)