Find a center. That really needs to happen and from there if Allen comes in hot and wins the job you're in great shape. At the very least they need to ensure center is good.
And I'd add a guard with one of the midround picks. Rams favor OT conversions but I'd look for an OG who has polish and good strength in the phonebooth.
Rams have not done a good job countering that 9er defensive front. Many of their problems start there. I know McVay is probably wanting pass game toys but fixing the front should be job one for this offense.
Also and btw... TE is a nice position to address in that it can be a toy for McVay but also we can improve our ability to block out on the edge. This is not to say we need a guy who blocks great in year one, but a guy who has good strength and willingness they can grow into that type of player.
Fix that front and get this secondary retooled and we might have a decent team. Not a real contender but maybe we get into the playoffs.