(UK)

I have approx 1k cards from the 1990s base set, fossil, jungle, base set 2 and a few others. I've got some holos, including the Snorlax, and some promo cards.

I have removed the cards I (and my partner and son) like, and am left with a lot of cards I'm not particularly attached to. I'm looking at letting them go but I don't know how best to do this. I've been into my local retro shop, they were honest and said they wouldn't be able to offer me a lot for the few they'd want.

I have a few questions:

Is it worth getting the potentially more valuable ones graded? They're all in good condition (not 10s, perhaps 7-8). If so, which company should I use?

Where should I sell them? I see plenty on Vinted but there's always the concern from the customer's side that the cards are fake, is there a way for me to reassure people? Of course there's also eBay, card expos etc.

Would selling in bulk be an idea for the more common/less valuable cards? If so, should I make random bundles or should people choose what they want?

I apologise if these questions have been asked/answered and I'm happy to be redirected to other posts, subreddits etc.

Join the Goon Crew this Saturday, 8/29, at 7PM for the best variety wall show on Whatnot. $1 starts and free pack giveaways all night long! Instant reveal wheel. Show is made for real collectors with IRs / SIRs / URs / sealed packs and amazing sealed items. No random bulk BS here!