Would a redtail shark get along with 2 adult angels in a 29 gal with plants, rocks, and driftwood? I've read they can be aggressive And stress other fish.
They do get more aggressive as they age, though some are more aggressive than others. The RTS will get too big for the 29g, though, so you shouldn't get one/rehome it, unless you're planning on getting a larger tank for it.
RTS should be fine with angels if they are given enough space though.
if you upgrade to at least a 55 gallon you should be fine. i wouldn't do a pair of angels in a 29, too small IMO, and there will definitely be aggression issues if you put a RTS in there as well.