There is the less expensive 10" Surface Go for $540, but 10" might be too small and that price does not include a keyboard or pen either. It also has Windows S installed rather than Windows 10, but it can be upgraded to Windows 10 for free.
The 13.3" Acer Spin 3 may be a possible laptop. It is listed as 3.31bls and can be converted to a tablet. It does cost $775 which is average for a 13.3" convertible laptop with a quad core i5-8250u CPU. 13.3" laptops generally costs more than the typical 15.6" laptop with similar specs.
Are these able to use voice programs? Need to use headphone due to disability. Not sure what programs exist now but these sound like good options. These work for general web surfing and movie watching?