The best replacement for soba noodles is udon.

The best alternatives to soba noodles are rated as following:
★★★★★  udon
★★★  ramen
★★★  udon noodles
★  yakisoba
★  egg noodles
★  chinese noodles

Your alternative for soba noodles is not listed? Suggest!
Speaking about soba noodles, one probably shouldn't forget about peanut sauce.

Other search terms related to soba noodles and their ratings are:
★★★★★ peanut sauce
miso
You have in mind a companion for soba noodles and it is not yet here? Propose!



Google Trends

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soba noodles
udon
ramen