this one would be a great one to learn the process: https://www.amazon.com/Speedball-Advanced-All-Screen-Printing/dp/B007W6SAD4

The $50 one isn't on Amazon anymore.

I wouldn't , you still have to get emulsion and ink. A lot of people start with speedball, I think this kit has everything you need and its a famous brand so you'll be able to get help easily. both below are better choices but do cost more money

https://www.amazon.com/Speedball-Advanced-All-Screen-Printing/dp/B007W6SAD4/ref=sr_1_12?crid=15ZIJ2S9K80SY&dchild=1&keywords=screen+printing+kit&qid=1624996915&s=arts-crafts&sprefix=screen+%2Carts-crafts%2C230&sr=1-12

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OR

https://www.amazon.com/Jacquard-Screen-Printing-Kit-Sensitizer/dp/B08KHW6RZC/ref=pd_di_sccai_5/145-0272367-1968177?pd_rd_w=s3qbL&pf_rd_p=c9443270-b914-4430-a90b-72e3e7e784e0&pf_rd_r=VVXVKXCGK1CWVQ14KKG9&pd_rd_r=9265da4e-a2a0-48ad-a861-6e93b5c6d3c4&pd_rd_wg=bs0ed&pd_rd_i=B08KHW6RZC&psc=1