I know someone into TRX (TRON coin). Been making interest on it for years. Never really been on my radar.
Friend just discovered can not only delegate TRX and get interest on it, but can also (both at same time) rent out 'energy).
Current math I've been imusing is: for every 100,000 TRX one has (renting out energy) on gets 43.8 TRX a day.
Obviously better if one accumulated TRX when it was cheaper ($.30 per as of today), but at 1,000,000 TRX, that's ~$3,942 worth of TRX a month.
It's switched my crypto investing mentality to 'holding and hoping is dumb (though I've done well), coins with income is better'.