Good guitar amps for around $100?

hey, i need a new amp for my guitar.i currently have a red jay turser strat (beginner guitar) i wanted a new amp becuase the one i have is a piece of ****. also, in a few months im getting a new guitar, probly gunna get an SG not sure if its gonna be gibson or epi. the amp has to be able to play soft rock as well as heavy rock. any ideas?