You can try Tribute games or Yachtclub games. Both of which have had a good track record of producing their own games. The art style you're using could be right up their alley. By which i mean, they may be interested in publishing your game if you contact either of them.
Gigabite
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A member registered Jul 03, 2017 · View creator page →
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I've noticed some errors in your examples. Page 17 in the coding and text where it says "bat_x=bat_x+3" in the function move_bat(). In page 40 under the same function move_bat() it changed to "bat_x=bat_x+bat_speed" without any explanation. Also on page 36 it says at the top "detect_collision" even though in previous examples say "check_collision".