Not sure if this is a good place for this thread but i would like to share an interesting option for you.
Fairdrop.io is na new project that was build to present aidrops free of bots. Thay achived that by using IDENA (first proof of person blockchain).
https://medium.com/@idena.network/how-idena-works-4f4d19aabbb1IDENA has 2400 nodes out of which 300 already registered on fairdrop.io (few days after project start, and 2 days after first airdrop announcement. This number will rapidly grow to the limit of 2400 - number of all IDENA nodes currently)
They just started with first airdrop:
We've observed some of our community members are interested in a $dna fairdrop to understand how things work at
http://fairdrop.ioSo, we present you the first demo drop at
http://fairdrop.ioCalling out all enthusiastic community members to pool in $dna.
Ending a long admission by going to clue:
Every sponsor(donation amount >=100 $dna) will have a dedicated paragraph in the announcement message that goes to all the registered users.
Please provide the below details, if you are a sponsor, here or in DM

- name
- a 2 or 3 sentence text
- a link to twitter or any profile of your choice
100 DNA is equal to
9$ at current price.
Didn't think about that use case. Like it :-) It makes sense.