I would start with a vertical thermo-siphon reboiler design. This has no pump, and relies on temperature rise to circulate the fluid through an exchanger. The distillation vessel discharges cooler fluid off the bottom nozzle that goes to the bottom of the exchanger. The distillation bottoms rises through the exchanger as it is heated, and returns to the distillation vessel -subsurface. I would start with a taller distillation bottom vessel with smaller diameter. You will need some height .

The exchanger is a one-pass vertical design with hot oil in the shell. A Heat transfer oil is circulated to the shell side of the exchanger from an electric heater unit. The heater can be heat only (on-off control) or electric heat, and water cooled (if a smaller water excanger is added in the flow path).

Use larger tubes to allow fluid flow with every low pressure drop. Boiling will occur in the tubes, so the flow will be dependent largely on the vapor generation rate. This is 2-phase flow so you need to design the heat transfer rates to control the vapor rate generated in the exchanger.

Do a material balance first to get average and max distillation rates for the distillation. Then do a heat balance. Then size the exchanger. Heat tansfer ,rates depend on the fluids and temperatures in the exchanger. Sizing the tube diameters in the exchanger is very important. After this the electric oil heater is easy to select.

https://www.process-heating.com/articles/84799-tips-hot-oil-systems

http://www.multitherm.com/technical_articles_operating_hot_oil_heat_transfer_system.html

https://www.chromalox.com/catalog/industrial-heaters-and-systems/heat-transfer-systems/hot-oil-heaters-heat-transfer-systems

This should give you a good start.

The bottom liquid can exit the kettle on level control, nothing unusual about that. You're basically replacing the tubes with an electric coil. The power/kW provided by the electric coil should be the same as reboiler duty required by the distillation column. To get the size of this electric coil, you are better off contacting a vendor. You would probably want a variable resister so you change the heat delivered for column controllability.

Using electric coils inside the reboiler might require checking the electric coil surface temperature. This can be important in case the liquid is sensitive to high temperatures (polymerization, cracking etc.). In this respect also the liquid residence time in the reboiler might be an issue to minimize.