I go between my knock off xebec dual screen set up for a total of 3 screens or my asus zen screen if I know where I’m going I have room for it.

The xebec can be pricey and a wait period for some but Amazon has a lot of similar dual screen attachments too.

Knockoff Xebec

https://www.amazon.com/dp/B09NNF6KTV/?coliid=ISA8UGVHZSI2J&colid=29D4E2AIYSY5E&psc=1&ref_=lv_ov_lig_dp_it

Asus Zen Screen

https://www.amazon.com/ASUS-ZenScreen-Portable-Monitor-MB165B/dp/B09FNVF8DF/ref=sr_1_5?keywords=asus+zenscreen15.6+portable+monitor&qid=1649856093&s=electronics&sprefix=asus+zen+sc%2Celectronics%2C121&sr=1-5

Xebec Screen

https://www.thexebec.com/?utm_campaign=google&utm_term=branded&utm_source=branded-search&gclid=CjwKCAjw6dmSBhBkEiwA_W-EoMBSUgs7qDmm-0BdPcqtdZudukpTQ-_YqXPsqluFfcIm-jBE44AdMxoCWj0QAvD_BwE

• Monitor...if you travel between locations get a travel monitor (Here is what I have https://www.amazon.com/ASUS-ZenScreen-Portable-Monitor-MB165B/dp/B09FNVF8DF/ref=sr_1_4?crid=IWOBDL5873F&keywords=travel%2Bmonitor&qid=1652283040&sprefix=travel%2Bmonitor%2Caps%2C176&sr=8-4&th=1)
• External Keyboard....a nice one. Look at Gaming Keyboards (I'm fussy and like classy clicky keyboards, so this is mine https://www.amazon.com/SteelSeries-Apex-RGB-Gaming-Keyboard/dp/B07ZGDPT4M/ref=sr_1_8?crid=38UTYEMP03XET&keywords=gaming%2Bkeyboard&qid=1652283077&sprefix=gaming%2Bkeyboar%2Caps%2C166&sr=8-8&th=1)
• Headphones...don't skimp here. Travel or Gaming Headphoes. Sony or Steel Series depending on your budget. (Ok, not going to lie...I have a lot of different options here. I have Airpods when I travel...with a backup of some cheaper Anker pods, when I'm home I like my over the ear Sony WH-1000XM4 ...but those are super fancy)
• External mouse. Look at Gaming Mice. (I've used the Logitech MX series for years)
• Mouse pad (anything will do)
• Spare power cable
• If you aren't working from a desk and are working from somewhere random around your house, grab a diaper caddy from amazon (I kid you not) and put your normal desk things in it to have everything centralized with you. Pens, notebooks, cables, etc. I use this (https://www.amazon.com/Parker-Baby-Diaper-Caddy-Organizer/dp/B01LZ2QE21/ref=sr_1_1_sspa?keywords=diaper+caddy&qid=1652282977&sr=8-1-spons&psc=1&smid=A2DGY2Y99U9RBE&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzNEhOTTEwVzFMNk9BJmVuY3J5cHRlZElkPUEwMjIwNjg3SFlXNUNQTlNDU0RQJmVuY3J5cHRlZEFkSWQ9QTAxODE1MzAzUDVZRTRNMldQWjU2JndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==) , but you can snag whatever style works for you