The best replacement for otg is microwave.

The best alternatives to otg are rated as following:
★★★★★  microwave
★★★★  oven
★★★★  electric tandoor
★★  built in oven
★★  usb host
★★  microwave with convection
★  usb cable
★  convection microwave
★  convection microwave oven
★  microwave which is better
★  tandoor
★  conventional oven
★  microwave oven
★  convection oven
  fw
  microwave convection

Your alternative for otg is not listed? Suggest!
Speaking about otg, one probably shouldn't forget about mhl.

Other search terms related to otg and their ratings are:
★★★★★ mhl
You have in mind a companion for otg and it is not yet here? Propose!



Google Trends

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otg
microwave
oven