Another option: My Favorite Things new Hug It Out stamp set:
https://mftstamps.com/collections/ne...-outSentiments include:
Sending You a Very Big Squeeze,
I Know Hugs Are Healing, So I’m Sending You My Best Hug Ever,
Pretend I’m Only an Arm’s Reach Away,
Pretend This Is Me, Hugging You, for a Really Long Time,
You Give the Best Hugs and I Miss Them,
Air Hugs ’Til We Can Bear Hug
Plus cute pictures of animals hugging.
But really any hugs sentiments and images are great. There were a bunch of citrus sets that had sentiments like "Consider Yourself Squeezed." That seems nice and sunny to me.
I also like the upbeat and punny sets from Lawn Fawn, like this hamster and a hamster wheel with the sentiment "I wheelie like you." It's corny, but corny usually puts a smile on someone's face.
https://www.lawnfawn.com/products/wh...0c431a9a&_ss=r
Finally, there's the whole galentine's theme. It's not my thing exactly, but it seems to be designed for non-romantic, female friends to express appreciation to each other on Valentine's Day. Another My Favorite Things set:
https://mftstamps.com/products/my-ga...0873aa00&_ss=r
Finally, I think any card with lots of hearts and a simple sentiment like Happy Valentine's Day is neutral enough to be welcomed by anyone.