The best replacement for viewbag is viewdata.

The best alternatives to viewbag are rated as following:
★★★★★  viewdata
★★★  viewstate
★★  tempdata
★★  viewmodel
★★  viewdata mvc 4
★  viewdata mvc

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

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



Google Trends

Scale is based on the average worldwide traffic of viewbag in all years. Click on graph for more.
viewbag
viewdata
viewstate