Any good couch stretch recommendations?

I guess first, I would ask you a question! Do you mean recommendations on doing “The Couch Stretch,” or do you mean recommendations on stretches you can do on/from the couch!?

For doing “The Couch Stretch” here is a good resource on proper form and variations: https://www.healthline.com/health/couch-stretch

For stretches that can be done on/from a Couch, some of my favorites are:

Foot and ankle stretches:
Seated Foot Flex and Point
Seated Ankle Circles
Seated Toe Stretch and Flex
Plantar Fascia Stretch

Hip stretches:
Seated inner thigh stretch
Seated figure 4 stretch
Seated glute stretch
Seated hamstring stretch

Back stretches:
Chair stretch
Seated rotation
Cat-cow stretch
Seated Abdominal Bracing

Arm stretches:
Eagle Arms (Garudasana arms)
Reverse Prayer (Parsva anjali mudra)
Cow Face Pose arms (Gomukhasana arms)
Assisted side bend

Shoulder stretches:
Desk angels
Shoulder rolls
Upper trapezius stretch
Armpit stretch

Neck stretches:
Seated Clasping Neck Stretch
Neck Rotation
Neck Retraction
Simple Side Neck Stretch

You can find resources on how to do all of the above, just Google or YouTube them! I hope this helps.