I’ve come across several concepts of space propulsion drives and I wanted to know which one would be likely to be most suitable for Interplanetary travel, take offs and landings.

Let’s assume they are all possible to create and I am NOT looking for faster than light propulsion.

1.) Dipole drive https://www.nextbigfuture.com/2018/0...ole-drive.html

2.) Quantized Inertia drive https://www.tsijournals.com/articles...ed-inertia.pdf

3.) Thermonuclear Micro-bomb propulsion drive https://www.nextbigfuture.com/2013/0...lsion-for.html

4.) Bias drive https://www.daviddarling.info/encycl...ias_drive.html

5.) Diametric drive https://www.daviddarling.info/encycl...ric_drive.html

6.) Disjunction drive https://www.daviddarling.info/encycl...ion_drive.html

7.) Pitch drive https://ntrs.nasa.gov/archive/nasa/c...9990023236.pdf On pg. 5

Which one should I research OR is a good ‘old fashioned ion drive, good enough?