I'd suggests the ones from Ergomart, e.g. https://www.ergomart.com/monitor-mounts/monitor-arms/saa2415-heavy-duty-monitor-arm https://www.ergomart.com/monitor-m

I'd suggests the ones from Ergomart, e.g. https://www.ergomart.com/monitor-mounts/monitor-arms/saa2415-heavy-duty-monitor-arm https://www.ergomart.com/monitor-mounts/monitor-arms/saa2415.... They have options on some models that support up to 55 lbs as well as other models with extended reach.