I find that most people in my life have at least one “thing” they are collecting. It is often an insight into their personality and it is fun to hear people talk about something they are passionate about.
I donated one to charity a couple years back, but I used to have two copies of the Spawn EWU cover variant. I suspect I was the only person on the planet to have two of those. Not sure what to do with the other one it’s the only comic I own and I’ve never even opened it
Only 400 copies of that made, not super valuable given the limited run:
https://www.keycollectorcomics.com/issue/spawn-232-2,314047/
You could send it out to have it professionally graded, that would help.
Finding proper value on it has been difficult because there are so few you almost never see them for sale. The most I’ve ever been offered for mine is $7k, ungraded. I’ve definitely seen them sell for way less though it’s just so rare I think the data isn’t very reliable. Very much a ‘how much is it worth to the specific collector at that time’
Edit to add, how tf do I actually get this thing graded? I tried years ago and they sent it back to me after months of back and forth because they couldn’t figure out how much it was worth so they didn’t know how much to charge me. The whole situation was a mess
The grading isn’t about assessing value, it’s about condition. There are multiple grading companies out there who will grade the book and seal it to prevent it degrading.
You can talk with them directly or go through a local comic shop who does grading to get it done.
CGC is the big one:
https://www.cgccomics.com/
CBCS is #2:
https://www.cbcscomics.com/
There are others, but for terms of increasing the value of the book, you want one of those two.
https://www.pfadvice.com/2023/04/18/the-6-best-comic-book-grading-and-slabbing-companies/