I've had Raptor boards on my truck for about 11 years. They've held up very well.

 

Pretty much all of them are bolt on, unless they are home-made and welded on.

 

Go online or the local parts and/or accessories stores and see what they have. There are auto-folding ones, different widths and styles, probably different offsets to the bar is higher or lower.

It's probably more limited now, given the truck is almost 25 years old and there aren't a lot of people buying new ones for them.

 

AMP steps require you to bolt them to the rockers. They are low profile and use a motor to retract.

NFAB is another good option. I think those might also bolt to the rockers.