Couple brands that 1st come to mind for me in that
>$50 but <$100
Range
Buck or Case
Stedemon or Kizer
Kizlyar Supreme
Cold Steel
They all make a pretty decent sub $100 (sub $80 even) knife, with decent enough support through trusted dealers.
And between them all they cover dang near every style you may be after.
Personally, I wouldn't even hesitate to go after a Kershaw, CRKT, or Boker+ in that price range, (typically the range where many of their "better" models fall), if I really liked the size, shape, design, etc, and it just ticked all of the boxes for me.
Real Steel has built their selves a decent reputation as well, more specifically in that price range...