This stuff seems very good for the smaller lines
https://www.lowes.com/pd/EZ-FLO-1-8-in-Inner-Diameter-x-10-ft-Polyurethane-Fuel-Hose/1000365069
For the 1/4"ID polyurethane I buy the blue motorcycle stuff online.
Might be too flexible for some people but I like it, lasts a LONG time, never has failed.
Also relatively cheap. Only thing is, after several years it gets darker and not so clear anymore.
I bought some recommended tygon stuff from mcmaster, 3 different sizes. After a year or less they ALL got soft and started breaking, causing big hassles. I think biodiesel destroys it quick, but even just the heat too.