These suggestions all likely to be at the best deals price as of today for brand new scopes with free shipping.
Fantastic deal for $135 shipped. Seller pays return shipping 14 day return policy if you not happy with it. Possibly get it for $105 after the fact if purchased before December 31 and get a legitimate receipt for it to try the Bushnell factory $30 rebate online. 4.5-18x40.
10 yard side focus on all of these scopes mentioned here.
Since you are limiting yourself to only 10 meter shooting you can use it at the lower magnification settings for wider and brighter field of view and you can just zoom in when needed.
https://www.ebay.com/itm/194584548700 Another with free shipping but with returns accepted ship on your dime. Lower 3-12×40 starting point at 3x. No possible rebate on this model but it is a rather good deal.
https://www.ebay.com/itm/363657820252?epid=24016606587&hash=item54abb1f85c:g:v-IAAOSwqk5hqRSW I have a few of the Bushnell AR 223 side focus scopes and they are fine for close range airgun shots.
Both Bushnell AR scopes are Made in South Korea instead of China if that matters any to you at all.
This one is probably may be the best bang for your buck in a more than decent scope believe it or not. 10 yards side focus as seen on you tube Benjamin Kratos Akela videos Rick's shooters 1721 watch video see what it look like on the Akela.
Surprisingly bright and clear regardless of how inexpensive it is. He states how nice it really is at the ending part of the video. Look like he is using the included scope rings too.
Seller offers free shipping and free returns with in 14 days if you not happy with it. Read the reviews on that eBay listing.
https://www.ebay.com/p/19011763482?iid=265342668376 https://youtu.be/CMg3grmM1ZU
I doubt you may need anything more expensive than any one of these scopes if only planning on shooting 10 yards.
I was going to suggest Leapers Bug buster models with the side focus but the eye box is not too friendly as compared to these.