Problem applying shader to single sprite

I’m still really new to shader programming. I want to apply a shader to one sprite something like making your char glow but i don’t want to effect the whole scene.

I want to achieve this without calling spritebatch.begin() spritebatch.end() more than once. Is there a way to do something like this?

I’m using Monogame Version 3.4.

Okay I tried the following:

I created 2 shaders 1 default shader doing nothing just return the Image and one shader turning the Image to Black & White. Now I’m able to reset my shader by calling the default shader.

Is there a better way doing this?