I think Lineage OS integrated launcher is fine but if you need to change it I would recommend Lawnchair or Kvaesito. It really depends on you workflow and what functions you want/need. I would say Lawnchair has a more classic interface while still allowing for customization. There are some forks going around so I encourage you to look in Github or F-droid. Oh and Niagara launcher is nice if you depend on few apps that you frequently use, but it has some features locked that are only available in the PRO version.