anywhere to buy official steam keys?

GreenManGaming

If you use isthereanydeal.com or gg.deal search engines you'll get loads of info.

isthereanydeal.com uses only official resellers

gg.deals shows both, but you can filter for only official sites

There are quite a few

Any side that's listed on https://isthereanydeal.com/ is legit.
You can find a list of stores on the right side

for bundle sites
groupees - seems to not be so great these days but there is occasionally good BYOB's
ok maybe not a legit storefront anymore, I have had no issues with past keys from them, only have gotten two relatively recently so only time will tell, doubt there will be any issues though.

gamersgate, pretty sure they also sell non steam games to.

I'm not sure how many of these are still up but here is a thread from some time ago:
https://www.steamgifts.com/discussion/Yd0M4/list-of-official-licensed-steam-retailersstores

thanks

has anyone bought from dl gamer it looks quite good and has many good thing for cheap for giveaway but are they region locked?

also have any of you tried gamergate as that too looks good

I've bought from Gamersgate, it's a good site.

I've also used GamesPlanet without a problem. I've actually used several of their European storefronts from the USA (without a VPN), they don't seem to mind and I've gotten slightly better deals (because their prices are not always exact matches across different currencies).

I usually shop at:
humble
fanatical
greenman gaming
games planet (row keys, a bit expensive)

I've bought from the following with no issue just watch on some of them as they're not all steam keys, they could be epic or ubisoft, just make sure to read the sale profile.

Fanatical
Gamebillet
Gamersgate
GreenManGaming
Humble Bundle
Indiegala

id say the same like others, isthereanydeal.com is great.
The websites/ stores they list, helps out the developers in terms of revenue.
Just make sure to check for regional restrictions, while buying from any of the above stores.

cdkeys.com

Edit. I didn't know it was a grey market site. Got some Monkey Island keys for myself. Good thing I didn't buy anything else from there. A big thank you to everyone for your responses!