I've recently made some updates to the ActivityPub Relay I maintain. This includes a regularly updated list of connected instances for monitoring their status and having an easy way to refer to instances for inquiry. I've also added a relay policy which states instances will be banned for featuring bigoted content or having poor admin/uptime.

I definitely have room for some more Mastodon, Misskey, and Pleroma instances.

The relay server itself is located in the east coast of the United States, but open to all regions.

ActivityPub Relay, US East: https://circlewithadot.net/services/aprelay.html

Follow on Mastodon for relay status updates and info: https://mastodon.circlewithadot.net/@cwad