While you are of course correct, the free offerings from ngrok are limited to 1GB/m transfer, not sure if that’s feasible to run a mc server with, so I didn’t assume that OP was the free plan. (Although admittedly, he likely is)

Trouble is that much of that awesome list is reliant on having resources that you can self host and egress point on. Which doesn’t seem all that likely either. This really wasn’t the right sub to ask his question in. 😅

But since he did, the I’d probably suggest that OP drops ngrok completely in favor of something like playit.gg which has dedicated hostname (and a bunch of other useful stuff) built right with every tunnel.

Ngrok offers fixed address. Just set one up and give that out for people to connect to instead of temporary IPs.