4 1/2 month old Sleeping recommendation

My son is almost 5 months. He is already 20pounds! We have been using the baby delight bedside sleeper but it has a weight limit of 20 lbs so we need to find something new. We have a pack n play but the top bassinet insert has a 15lb weight limit 🤦‍♀️and I don’t want to use lower half since I want to be able to see him while I’m in bed just for safety and comfort reasons. would it be worth it to buy a crib that turns into toddler bed or what should we use?