Looking for Solar Panel Recommendations

I purchased two 400w Ecoflow panels but am really dissatisfied with them. They are heavy, unwieldy, impossible to prop up and the “backing” provided by Ecoflow that is supposed to support them is a joke. They are too heavy and too floppy - they just fall over.

So - looking for as much wattage as possible up to 1600watts (max charging power). using an MC4 connector that can support 11-150V DC input, 15A max current. MOST IMPORTANT, these will not be attached to my roof, so they need to be under 20 pounds (preferably) so that I can easily store and use them. It’s ok if they don’t come with brackets for support - I can buy those separately.

Any ideas or thoughts greatly appreciated!