Have you been to David’s Bridal? Here are two Hepburnesque tea length dresses with sleeves that I found on their website.
If you have the opportunity to, it’s definitely worthwhile to try on stuff in person to see what you like and what you don’t like before purchasing anything online ^_^. You might decide you really don’t like lace on you, or you really like beading, or etc … (Ex: I thought this really modern dress was super cool until I tried it on. Fi calls it the calamari dress, lol) Also, if you go in to other stores to try on some of those strapless dresses in your area to see if you are sold on the tea length idea, you could also ask if they can add sleeves to the dresses. They should be able to ^_^!
Maybe check out some of the large bridal websites like bestbridalprices, etc …? You can price check against each other, and they have pretty good matching policies (something like matching the lower price you find + extra 10% off or something like that). And they are a legit company with brick and mortar stores (other similar websites are like HouseofBrides, and WeddingShoppeInc) so you shouldn’t have problems with refunds and exchanges like you can sometimes have with Chinese websites. If you like them on FB you’ll also get a $10 coupon, and certain dresses have Free Veil + Shoes to a certain $$ value.
Here’s one I thought was gorgeous!
It has sleeves, and is really classic looking (Audrey Hepburn!). It’s also very structured, so even if you decided to take the risk of purchasing online without trying it on, I don’t think you would have to worry about frumpiness.
I also found some other vintage-feel tea length dresses online:
(These aren’t shown in white, but you can have them made in 60 colors, one of which is white ^_^)