If you have the room on the Oak tree, or any place, I used a 1/2 dipole but configured Vertically. I purchased paint pole at Lowes, which support the 33ft vertically (This worked better for my end than Horizontal Dipole. (I could not get the dipole high enough for the horizontal to work effectively
I used the Paint pole supported 33ft...(UP). I found having the dipole vertical had great results..(20 Meters)
If you have the funds, and the attic can support it, than K4KIO Hex beam...That is 11ft in radius. That will really work...You can use a TV rotor from Radio shack...(Or something similar (It costs 70$ new). Hex Beam mono band, can cost as low as $300
But Dipole, loop, in the Attic will work, You will have success with FT8, FT4, and Olivia...SSB domestically should work well, especially domestic during the day time.
Have fun! And the ICOM 7300, you can't go wrong...
C U on the bands, NN2X, Tom