Prefbid.com is a great resource starting out. The generic bids they post are a good way to start. For a half winger (on reserve?) this is the simplest one, domestically. Add "must award HDO" to this as desired in the first bid group then remove them one by one in subsequent bid groups. Always end with a bid group that will not fail to prevent going to denial mode. From the site,

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Finally, an example of a reserve bid that preferences, in order, full weekends off, Saturdays off, and then Sundays off. This bid will not fail if the bidder is able to hold a reserve award.

1 AWARD RSV Sat 30Oct 00:00 - 29Nov 23:59 [L--]
2 AWARD RSV Sun 30Oct 00:00 - 29Nov 23:59 [L-]
3 AWARD RSV Mon 0000 - Fri 2359 30Oct 00:00 - 29Nov 23:59 [L]