https://simplefx.com
https://whaleclub.co/
Just choose up and be sure to find some feedbacks first since the only broker i have used or test out is simplefx.
i've used simplefx---their UI is crappy but usable and the spreads aren't horrible. i would steer clear of them though considering they were the second most visible crypto broker that accepted USA residents and offer the same services as 1broker. i wouldn't be surprised if they get their domain seized just the same.
whaleclub are straight up scammers. they void out winning trades left and right for illegitimate reasons, withholding your rightful profits. there's some pretty damning threads about them in the service discussion / exchanges forum.
if you want to go the regulated route, i've heard decent things about avatrade. (no USA residents)