I recommend you take a look at bunny.net, an Cloudflare alternative which is European and can support deno workers and so you are much more likely to be able to use it
Regarding Cloudflare r2, there might be many but I like the idea of Upcloud and you can get yourself say a 3.50 euros machine there and (they got unlimited egress! Wish I was sponsored by them lmaoo) and their block storage is around 20 Euros per month for unlimited egress. They provide 1-24 TB per month free unlimited but after that its capped at 100mbps for unlimited amount of time and I don't think that it could be an issue in this case? And you can always get more 3.50 euros servers to get more 100mbps unlimited so the possibilities are endless
OVH provides unlimited egress as well and OVH is another good bet. I love both for unlimited egress if what you are doing is very bandwidth intensive in the first place
Both are European. I have heard good things about scaleway too
Also searched bunny and looks like it provides some storage service too and unlimited egress to bunny cdn from that https://bunny.net/pricing/storage/
Looks neat.
If Dock runs on AWS or Cloudflare infra it is, by definition, a no go for me and many others here. Would like to get an answer on that.
FWIW: I use scaleway far a medium sized project and find it a good experience. Of course there are bugs and some things could be better. But support is good and the responses to bugs in their terraform provider are quick.
Also using bunny.net, happy so far.
Only thing I am missing is to create mailboxes (not transactional mail) on those two providers. I needed a third one for that.