I needed LR44 batteries awhile back, Amazon lists these 357 batteries with LR44 as a keyword. 357 are bigger than LR44. : r/assholedesign
AmVolt- Pack of 15 LR44 Batteries AG13A76 Battery, Premium Alkaline Ultra Power Non Rechargeable Button Battery, 1.5 Volt Small Batteries for Remotes Games Controllers Toys & Electronic Devices
Amazon Basics 12 Pack LR44 1.5 Volt Alkaline Button Cell Battery - Long Lasting Power for Small Electronic Devices” - Global Village Space | Technology