Help! How do I get my 6 week old to sleep

My LO just wants to be held. I've been stuck on the couch just holding her. When I put her down to sleep during the day after like 20 to 30 mins she wakes up. At night she sleeps 4 to 5 hours only if shes right up against or on top of me or my husband.

Please don't suggest crying it out bc I just can't do it.