When you have your porechopped reads in fastq and fasta formats, try out the following assemblers:

Programs: ABruijn (https://github.com/fenderglass/ABruijn), Canu (http://canu.readthedocs.io/en/latest/quick-start.html), smartdenovo (https://github.com/ruanjue/smartdenovo), miniasm (https://github.com/lh3/miniasm)

ABruijn

Canu

smartdenovo

miniasm