The best replacement for ovaries is appendix.

The best alternatives to ovaries are rated as following:
★★★★★  appendix
★★★  testes
★★★  uterus
★★★  kidneys
★★  fallopian tubes
★★  testicles
★★  pcos
★  no ovaries
★  testis
★  adrenal glands
  normal ovaries
  balls
  polycystic ovaries
  multicystic ovaries

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

Other search terms related to ovaries and their ratings are:
★★★★★ pcos
★★★★ cysts
★★ uterus
★ cyst
★ multiple small cysts
★ multiple small peripheral follicles
★ endometriosis
cancer
removing uterus
hysterectomy
insulin resistance
You have in mind a companion for ovaries and it is not yet here? Propose!



Google Trends

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ovaries
appendix
testes