With Memorial Day, at the time of this writing, tis the season to be on the lookout for Sporadic "E" Upper HF, VHF, UHF, and higher FREQ's, propagation. I still like
https://www.dxmaps.com/spots/mapg.php?Lan=E&Frec=50&ML=M&Map=W2LN&HF=N&DXC=ING2&GL=S And, from there, I found this:
https://www.fmlist.org/ul_login.php Then, for Tropo & temperature Inversions, there's this:
https://www.dxinfocentre.com/tropo.html This site is mainly for MW DX'ing, but has a boatload of various useful links:
https://www.bamlog.com/ So, HAPPY Summer DX'ing in those upper bands!