The best replacement for spouses is roommates.

The best alternatives to spouses are rated as following:
★★★★★  roommates
★★★★  spouses
★★★★  wife swap

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

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



Google Trends

Scale is based on the average worldwide traffic of spouses in all years. Click on graph for more.
spouses
roommates
spouses