Dragon Inspire is a cool looking tube amp! Oblivion Citadel is also an option though both are at the top of your budget. Also, check out the Feliks Audio stuff even though they are more simple like the Woo Audio stuff and somewhat overpriced for what you get. There's the Amps&Sound Kenzie at the top of your budget, Bottlehead Cracks fall within your budget if you're looking to DIY but you can also build yourself.
I don't think Glenn amps are really considered nice looking, but they are good quality for the price, and its always cool to have something custom made without breaking the bank.
If you wanna go super cheap but still have really nice sound quality go for an Eddie Current ZDT jr. Only $400 and pretty cool.
Cheers,
Jonathan