I had an amazing Easycamp tent which I got for £50 in a sale about 8 years ago, which sadly died last year after much faithful service (sob sob).
It was a full head height dome tent, with separate poorch.
I replaced it with the Easycamp eclipse 500 which is the ideal size/shape - however it has some major issues which are 1) the worst build quality i've ever seen so it is now in tatters after only a few trips and 2) no fly screen for the bedroom so door is either open to insects or closed which I hate.