Clearnet

Matrix: arnav@ghativega.in
Email: arnav (at) ghativega (dot) in
ReactOS Forums/Mattermost: @arnavbhatt288
Telegram: @durbuddhi

I2P

Dendrite Pinecone I2P: @arnavbhatt288:84940bb552ed0383075f4b20b7c296fd16c39804f298409564a02b1761fcf79c (can be also accessed through clearnet pinecone instances as well)
Email: arnavbhatt288 (at) mail (dot) i2p
I2P official IRC: arnavbhatt288

I respond fastest to Matrix and Email messages so that might be your safest bet. However, keep in mind that it might even take days to respond to you, so be patient.

I also have public Matrix space and channels as well, you can join it here.