What are my options for full-body recumbent trikes?
 

I like varibike.

I don't like the mclean because of short handles and it looks cramped and awkward.

I don't like greenway because the hand controls are not practical for leg/arm alternating mechanics.

I don't like rowcycle.

What else is on the market?

Choices for quadrupeds are going to be pretty limited; custom or nearly so. I'm not aware of any commercial offerings besides the Varitrike.

What's a "greenway?" Do you mean Greenspeed?

A little more info about your riding and such would be helpful. Also, and introduction here would be great, too.

https://www.bikeforums.net/introductions/

I'd say you've pretty much covered all the options already.
The McLean seems to be a one-off item built by a non-cyclist, so not too surprising if it's not optimized. (I read that as "M-Clean" first). https://mcleanmonocycle.com/abw-recumbent-trike-1/
I see a Greenspeed handcycle, but not a hand+foot cycle.