The best replacement for getline is fgets.

The best alternatives to getline are rated as following:
★★★★★  fgets
★★★★★  cin
★★★★  get
★★★  getline
★★  extraction operator
★★  cin.getline
★  getchar
  get c++
  gets

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

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



Google Trends

Scale is based on the average worldwide traffic of getline in all years. Click on graph for more.
getline
fgets
cin