The best replacement for spaniels is cavalier king charles spaniels.

The best alternatives to spaniels are rated as following:
★★★★★  cavalier king charles spaniels
★★★  cocker spaniels
★★★  setters
★★★  male cocker spaniels
★★  springer spaniels

Your alternative for spaniels is not listed? Suggest!
Speaking about spaniels, one probably shouldn't forget about skin problems.

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



Google Trends

Scale is based on the average worldwide traffic of spaniels in all years. Click on graph for more.
spaniels
cavalier king charles spaniels
cocker spaniels