Looking for cheap exchange, advice?

Hi guys, hope this is allowed. I stopped mining a while ago because I now pay for my electric not my landlord, and I'm looking to buy coins outright,specifically. And then put them in a hardwallet. I can't use bin an because I don't remember my account details so need a good exchange with low fees! Please help I need an exchange that won't mess me about or cost loads in fees like rovolut. Where is the best place to get coins for low fees Can't use binance I'm in the uk if that matters Just filling characters now