Below are a number of online tools you can use to erase the background of your image. Try out any of them to see which suits you best.
Slazzer

Slazzer background image remover
Erase.bg

Erase.bg image background eraser
Removal.ai

Removal.ai image background eraser
Hitpaw

Hitpaw background remover
APowerSoft

APowerSoft background eraser
Removebg

Remove.bg background remover
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