supervent

You could try on ed2k/kad network (emule/amule/mldonkey)

I just use jerboa

eMule/aMule/Mldonkey works like old limewire, it is from the same age, but still kicking

You can still use ed2k/kad network, it works fine.

Tor bridge/relay and i2p node

Snowflake and i2pd could work but not in the best conditions.

Snowflake/bridge is used when you do not want the authorities/ISP know, you are using tor or because it might be blocked (like on contries with censorship). When you are running snowflake/bridge you are helping these users. For the contrary, if you use a normal tor relay, they(ISP, authorities, who ever is watching your connection) know, but they do not know what you are doing.

A tor guard/middle relay or bridge/snowflake and i2pd node.

On ed2k/kad network (eMule/aMule/Mldonkey) I had 211 results...

In my case I use duckdns.org for DDNS, it is free and works well with wireguard.

For p2p it is better to use i2p, not tor

I recommend you to use ed2k/kad networks. You just have to start the client (emule, aMule or mldonkey) and share the folders. The first time you will need a server.met file, which contains the servers, the ipfilter.dat and also nodes.dat for the kad network.