If you see this please recommend me some online alt shops

My main formula for the outfits I wear is this:

- White polo shirt (or black polo shirt if it better suits the outfit), Fun little sweater/jumper or t-shirt + jacket (I like spooky/halloween stuff), Black school trousers (because they're comfy, easy to repair/replace and go with everything), the one pair of trainers I have (shoes are expensive and I don't have much money + my other pair are falling apart), and accessories!! which usually consists of a tie, earrings, tights if it's warm enough and I have shorts on, gloves, chokers, lil glasses, etc.

The only real requirement of what I'm looking for is that it has to ship to the UK because otherwise I can't get the clothes (obviously). I'm mainly hoping to find some more lil ties for outfits I already have. I'm sure I won't find exactly what I'm looking for, which is fine, I can make them myself, but if I find something that works, yay!! 

I also don't have any specific style, but I like my clothes to be mainly black, and spooky, like halloween-esc or weirdcorey. I also like Sanrio (My favourite character is My Melody but Kuromi fits my style the best soo)

I should state that I'm also looking for clothes irl, but the main shop I went to turned out to be a scam :( and I don't have many good charity/second hand shops around where I live, and I don't really have the energy to go to them consistently. HMV is great though!!

Yeah okay!! I don't think many people are going to see this, but please give me some recommendations!! Nothing too expensive please, but I'm pretty sure most sites' prices will be within range of what I'm willing to spend. Thank you byeee!!