Tiger barbs are horrible fin nippers and are attracted to any long flowing fins which Angels have Tiger barbs need to be in groups of 6+ to keep down the aggression and Angels need a tall tank 18 inches to accomadate their fins. I think the size of your tank will help determine what to add, but I don't think the two would be compatible
However, cherry barbs aren't big on schooling so consider checker barbs or even rosy barbs (a little nippy so keep in a large shoal) or, my absolute favourite with angels, go for a shoal of scissortails. These rasboras grow to around 3 inches and look beautiful with angel fish.