So sorry, brother. Praying for you.
As far as burying or cremation, I’ve found out the hard way that needs to come down to what your living circumstances are.
Obviously the ideal situation is put him in the ground somewhere he loved and you can visit his resting place, talk to him and ask God to let him hear you.
But I got burned bad burying my beloved “Gloves” in a yard where a friend promised me I could always visit her grave, then wound up selling the place not too long afterwards. Cremation isn’t quite the same as burial but you can always have them with you, even have the option of making plans to eventually have their remains buried next to yours if that might help you.
Hang in there, my brother. Despite any circle of life mumbo jumbo anyone might try to feed you, death really is terrible and that’s why the Bible calls it “the last enemy.” Thankfully Jesus was willing to pay such a high price for us to be able to escape its permanent effects if we’re only willing.