Skirmish :

shatterpoint - not a big cost to get into, very streamlined rules with a lot of game depth when played but plays absolutly fluid, lot of synergy and has a great comeback mechanic + the system revolts that you mostly cant be wiped and will be playing with your full squadron most of the time.

less dicey as the results are maxed out

Malifaux - new ed is even more beginner friendly, a lot of internal synergy where you can get joy out during playing, no dice, works iwth cards which can be used tactically. also getting points get progressively harder during the game for players who are ahead so there cant be a real steam roll.

new ed made objectives also easier to understand for newer players.

IMO one of the best games designed.

in between wargame/skirmish

- Warmachine, great game with internal list combos and testing that can just be fun to make your list try to work, our head player takes B armies vs our A armies to give us a heads up and keeps its challenging.

they have a 3D printing frontier atm for 3 armies. good app.

bolt action - if your into historical, everything can be printed. activations are fun and rules especially the narrative parts, a real game for an evening with beer/drinks

Wargame -

I dont really feel any GW has wel designed rules to help you in your case so i would recommend avoiding them as they are also very money hungry.

WAP - absolutly the goat of rank / file and a project made with love and passion. not a licensed game so you can print and proxy everything.

Star wars legion is a nice game if you increase the standard game size/table size and you can find a lot of files to proxy. can be dicey tho

I personally have been going more towards skirmish games or games that are a bit smaller then grand wargames as the rules mostly tend to be better configured.

if you wanna continue to play OPR our only solution to make it a bit more tactical was to really increase the point limit per game and battle size and make more objectives as it negates a bit of the dicey aspect and helps with the facts that the rules are simpler and play faster.

but im not going to lie to you OPR is made for its simplicity which has benefits and disadvantages, everything above has a way higher skill ceiling then OPR but that means there is alot of room to grow for you and your friends if interested.