Any Philatelists or Stamp Collectors?

I started collecting stamps as something that my son might like when he was in Scouts.

I have various collections and First Day Covers.

I thought the First Day Covers were the most fun.

Since my sister-in-law passed away last year, I am finding that she had a lot of interests that I didn't know about.

Does anyone know the best way to sell the albums?  Other than on eBay. since I used to sell on eBay I know that is one way.

I haven't really looked at them yet. There are five albums that may be 90% complete.