These are some tablets within your budget:
https://www.amazon.com/Ultrathin-Graphic-Digital-Drawing-Pressure/dp/B01BA6XQI0?ref_=ast_sto_dp
https://www.amazon.com/HUION-H420X-Battery-free-Compatible-Chromebook/dp/B092QL5HFK?ref_=ast_sto_dp
https://www.amazon.com/Huion-Inches-Tablet-Graphics-Drawing/dp/B00DTPYWBG?ref_=ast_sto_dp
https://www.amazon.com/Inspiroy-H430P-Graphic-Drawing-Battery-Free/dp/B078GZFY1C?ref_=ast_sto_dp
Although, if you can, I would advise increasing the budget to $50~$60. There are TONS of excellent tablets there at decent sizes:
https://www.amazon.com/Graphic-Drawing-Function-Battery-Free-Pressure/dp/B07DPC98DT?ref_=ast_sto_dp
https://www.amazon.com/HUION-H610-Pro-V2-Sensitivity/dp/B07M913B7S?ref_=ast_sto_dp