Help for boys names please

Caz
Im 19 wks 4days pregnant with a baby boy and were really struggling with names. I have a daughter ellie-may. Last year lost our son leo-dennis. My girl made a teddy for leo, i chrocheted his blankey and dad had no connection until i decided to use his star sign leo to name him. Dennis was after my grandad. We would like to keep leo as baby's middle name and our surname is three syllables beginning with R. We like unique names and not the typical well known names. Any suggestions would be greatly appreciated. Thanks.