The best replacement for carports is garages.

The best alternatives to carports are rated as following:
★★★★★  garages
★★★★  awnings
★★★★  patio covers
★★  covers
★★  sheds
★★  portable garages

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

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



Google Trends

Scale is based on the average worldwide traffic of carports in all years. Click on graph for more.
carports
garages
awnings