Can you elaborate on why you don't like ClickUp? I've been long in search of a Jira replacement (haven't we all) and the only one that I'm seriously considering is ClickUp. Are there any show stoppers you've seen in practice?
To be fair to them I've not actually looked at the product, I just remember something about their marketing rubbed me the wrong way and put me off the brand. Give it a go though, you might like it.