When I was bottling, I would put some into 750ml Belgian bottles. Cork and cage them too. Especially my higher ABV brews that I was planning to age even longer.
I would opt to use something like a 1L swing-top bottle. Just be sure to check on the seals from time to time. My only concern, with those, is of the gaskets drying out and losing seal.
Personally, I keg entire batches now, bottling as needed (when taking someplace else). That includes high ABV brews. This allows me to age them in bulk form for as long as I wish. I also age [beer] in adapted 25L sanke kegs. Since I seal those up (too) they age very well.