Pics are encouraged!! I have a good amount of decor but not so much just small caves.

Im asking because in my 110 (3 parrots,2 Red Spotted Severums, 1 Large Angel) My Large Severum is being pretty aggressive toward the two smaller parrots and smaller severum. He does well with the Larger Parrot and Larger Angel that are his size but the smaller guys could use some shelter from time to time. Nothing major minus one smaller parrot getting stressed (black spots) but he still eats and is lively as ever. I know about cichlid stones but they are very expensive to me and im not too fond of the clay pots so any shared ideas would be great!

Im asking because in my 110 (3 parrots,2 Red Spotted Severums, 1 Large Angel) My Large Severum is being pretty aggressive toward the two smaller parrots and smaller severum. He does well with the Larger Parrot and Larger Angel that are his size but the smaller guys could use some shelter from time to time. Nothing major minus one smaller parrot getting stressed (black spots) but he still eats and is lively as ever. I know about cichlid stones but they are very expensive to me and im not too fond of the clay pots so any shared ideas would be great!