How about ????
?? Jelly Roll Race type of quilts
?? Postage stamp type
?? Nine Patch quilt variations, including Irish Chains
?? Four Patch making Irish Chains, Double Four Patch, etc.
While you have not been given any restrictions right now, make sure that you do get clearance before you get back into the sewing-saddle post-surgery.
Good Luck with your surgery and healing!