IMO, the best MacBook monitor is the LG 38WN95CW ultrawide monitor [1].
Pros:
* Larger 38" screen
* 90w charging
* Thunderbolt 3 (like USB-C but better)
* 144hz refresh rate
* 1ms response rate
And current generation MacBooks only support one external monitor, so two 27" 1440p monitors should not be recommended. And there are methods to having more monitors, but they require additional hardware and do not always work well.
Cons:
* Hard to acquire (out-of-stock everywhere)
* Very expensive ($1,500+)
* Cannot natively control brightness & sound via keyboard like other LG monitors, but software [2] can add this feature. Though, this is currently broken for all M1 Macs.
* Does not support True Tone
Read a review [3] for more information.
[1] https://www.lg.com/us/monitors/lg-38wn95c-w-ultrawide-monito...
[2] https://github.com/MonitorControl/MonitorControl/issues/323
[3] https://www.rtings.com/monitor/reviews/lg/38wn95c-w
Pros:
* Larger 38" screen
* 90w charging
* Thunderbolt 3 (like USB-C but better)
* 144hz refresh rate
* 1ms response rate
And current generation MacBooks only support one external monitor, so two 27" 1440p monitors should not be recommended. And there are methods to having more monitors, but they require additional hardware and do not always work well.
Cons:
* Hard to acquire (out-of-stock everywhere)
* Very expensive ($1,500+)
* Cannot natively control brightness & sound via keyboard like other LG monitors, but software [2] can add this feature. Though, this is currently broken for all M1 Macs.
* Does not support True Tone
Read a review [3] for more information.
[1] https://www.lg.com/us/monitors/lg-38wn95c-w-ultrawide-monito...
[2] https://github.com/MonitorControl/MonitorControl/issues/323
[3] https://www.rtings.com/monitor/reviews/lg/38wn95c-w