I'm not an expert on this subject. But you could take a look at a class ab power amplifier as used in audio amplification. They are made to deal with very low impedance and high output current to drive speakers.
Something like this: [![class ab power amp][1]][1]
(source: eet.com)
Although you should probably check whether your transistors can handle your frequencies.
[Image reference][2] [1]: https://i.sstatic.net/ilkkk.jpg [2]: https://www.eetimes.com/document.asp?doc_id=1274753Image reference