I got one from Amazon that has arms that flip up out of the way.

I recently got this one. Works great.

Hbada Office Task Desk Chair Swivel Home Comfort Chairs with Flip-up Arms and Adjustable Height, Black https://www.amazon.com/dp/B07QLWTLLN/ref=cm_sw_r_cp_api_glt_i_FSR7JGSGBAG5N2Y2E7JT?_encoding=UTF8&psc=1