If shinobi isn’t changed with the rebalancing, it will be your safe bet.
Hoplite 1 is also a great option for you, because it offers you some strong tools:
If you buy a mere Zega spear (lvl 120 spear +2 hoplite skills) you can benefit from finestra buff (crit + block +3 aoe ratio with the attribute) with 100% uptime. It also gives you Synchro thrusting which is another hard hitting button and the access to spears which are always superior to swords. The combo finestra + high guard enables a skyrocketing block value.
Points: 5 Finestra / Syncho thrusting / Stabbing (heavily up in the rebalancing).
Murmillo 2 if you want to plan for the far future (Murmi 3) and grab the attribute on scutum hit (double hit instead of 1).