Bitmex is still the leading futures trading platform in the crypto space for a reason.
Great website with billions in USD of volume per day, intuitive and easy to use UI.
They got all they big coins like BTC, ETH and now they even have a XRPUSD pair which u can trade at 50x.
Save 10% on trading fees for 6 months by using my referral link during the sign-up process on bitmex: /register/0tJds1 simply paste it into your browser at the end of the original bitmex url.
There is no reason not to use a referral link when signing up. If you don't use one, you won't get the discount on your trading fees. I create a new account every 6months, purely cause of this.
U can go till 100x, so u leverage 1usd into 100usd but the fees will probably destroy you, if you only have 1 dollar as margin. I recommend maximal 5x for safety.
Happy trading!