6 meters
I work alot of 6 meter DX during the sporadic-E season.
https://www.amateur-radio-wiki.net/trans-equatorial-propagation/
http://www.rcarc.org/presentations/Six%20Meter%20Presentation%20by%20WB2AMU.pdf
http://www.ham-radio.com/n6ca/50MHz/K6MIO_50MHz_F2Prop.pdf
https://www.qsl.net/n1irz/sixmeter.html
https://en.wikipedia.org/wiki/6-meter_band
https://www.dxmaps.com/six.html
https://www.k5nd.net/2020/11/guide-to-6-meter-dxing-getting-started-on-the-magic-band/
http://www.ham-radio.com/n6ca/50MHz/6mtrdx.html
https://www.palomararc.org/members/ac6v/talks/ac6v_6m_dx_talk.pdf
http://www.ari.verona.it/Public/data/ik3iul/2018629222246_6M_Propagation.pdf
http://k9la.us/Predicting_6_Meter_F2_Propagation.pdf
https://www.hamradiosecrets.com/6-meter-ham-band-activity.html
https://www.qsl.net/n1irz/sixmeter.html