here's some of the methods i've used:
1. in a domed tray
1a. in coco, peat plugs
1b. in berger bm7 or promix hp or 5-1-1
1c. hydro in perlite, coco coir, rockwool
using a variety of pot sizes and tray sizes, like 36 cell, 72 cell, 3.5 inch pots, solo cups, 2inch pots, etc
i like 1b...