The best replacement for bowline is double bowline.

The best alternatives to bowline are rated as following:
★★★★★  double bowline
★★★  figure 8
★★★  sheet bend
★★★  perfection loop
★★  splice
★  sheepshank
★  cowboy bowline
★  bowline
★  figure of eight
  figure eight

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

Other search terms related to bowline and their ratings are:
★★★★★ retrace
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bowline
double bowline
figure 8