What’s Your Go-To Payment Processor for Trading?

I’ve been diving deeper into trading lately, and I’m starting to realize how important it is to pick the right payment processor. I’ve tried a couple, but each has its pros and cons. Some are super user-friendly but have higher fees, while others are more cost-effective but can be a bit clunky to use. I’m curious about what you all are using and how you feel about it. Do you have any recommendations based on your experience? Also, are there any that you’ve found particularly good for international transactions? I just want to make sure I’m not missing out on something better while hoping to keep my costs down. Would love to hear your thoughts!