Just bought Vango Icarus 500 delux tents for the cubs. I think that would tick off many of the obvious options noted above. The poles and fabric are a bit thicker than the cheapos, so should last. There’s a tension band thing to support it in the wind. Headroom good, and two ‘bedrooms’ if that’s beneficial. 280 at Go Outdoors, topcashback etc.
The same tent seems to be sold as slightly different things so each chain can claim ‘exclusive to’.
Otherwise, the simple answer is to pick the decathlon one you like the best.
Trap/day shelter suggestion is a good one – with a bit of care and maybe an extra pole you could possibly rig a tarp as a porch extension.
At the other end of the scale we’ve used a vango beta 350xl successfully with the kids on a few trips. Lower and smaller, but enough space to get out of the rain if you need to.