Other K boy names similar to Keith

Baby coming soon and we chose not to know the sex. We have our girl name picked, but the boy name is tougher for us. We somehow like Keith, but aren't 100% committed yet. Not sure if others would also like it or just only associate it as a boomer generation name that hasn't come back yet. What are some other similar options we may fall in love with? Doesn't necessarily have to start with K if it fits the vibe

Note: middle name likely to be Harrison or Matthew (family names)