I've already shown of my romanization alongside the phonology in the thread for my conlang year language family,
the Awloyan Languages, but I'll go into more detail here.
Here is the phonology from that thread:
/m m: n n: ɲ ɲ:/ m mm n nn nh nnh
/b p: d t: ɟ c: g k:/ b p d t j c g k
/β β: z z: ʝ ʝ: ɣ ɣ:/ bh bb z zz jh jj gh gg
/lʷ l l: ʎ ʎ:/ lw l ll lh llh
/w j/ w y
/i i: y:~ʉ: u u:/ i ii ü u uu
/e e: ø:~ɵ: o o:/ e ee ö o oo
/ai̯ ä au̯/ ai a au
I chose to romanize /ɲ/ and /ʎ/ like in Portuguese by adding an <h> to the alveolar equivalent. The palatal stops are also pretty straightforward, with <c> and <j> for /c:/ and /ɟ/. What I'm the most split on is romanizing the obstruents. Diachronically, the fricatives result from voiced stops and the stops result from voiceless stops (short voiceless stops became short voiced, geminated voiceless stops stayed the same). So I could take the history into account and get this:
/b p: d t: ɟ c: g k:/ p pp t tt c cc k kk
/β β: z z: ʝ ʝ: ɣ ɣ:/ b bb z zz j jj g gg
Or I could continue using the current romanization:
/b p: d t: ɟ c: g k:/ b p d t j c g k
/β β: z z: ʝ ʝ: ɣ ɣ:/ bh bb z zz jh jj gh gg
I'm still not completely set on either so any advice is very appreciated.
Another thing of note is choosing <bh> for /β/ rather than <v>. There's not much reasoning for this, I just find <bh> more aesthetically pleasing. Last for the consonants is the romanization of digraphs. I use two different strategies for this. With the sonorants, I double the first grapheme and only have one <h>, and with the fricatives I double the first grapheme and drop the <h>. I chose to do this because the geminate fricatives remain distinct when only their first grapheme is doubled so the <h> is unnecessary. Olwöa does not feature any consonant clusters so the digraphs are unambiguous.
The vowel romanization is quite straightforward. I'm also fine with using <ue> <oe> in place of <ü> and <ö>. Olwöa features a lot of vowel hiatus, so when two vowels need to be shown as separate an apostrophe is placed between them. For example <mai> would be /mai̯/ but <ma'i> would be /ma.i/.
I believe that covers it. I'm excited to see what everyone else makes this year.