Cordless

$ varies depending on model + kit

• Ryobi One+ HP
• DeWalt 20V Max
• Milwaukee M18 Fuel
• Makita 18V LXT
• Bosch

Other brands such as Ridgid, Bauer (Harbor Freight), Hercules (Harbor Freight), and Kobalt may also be good options as well on a budget

A good option for a powerful cordless circular saw is the DeWalt FlexVolt 60V Max ($199 tool only, $369 for 1x battery)